When your CMO leaves, work in four phases. First 72 hours: take control of every marketing account, budget, and agency contract, and tell the team and sales who is in charge. Days 1 to 30: protect pipeline. Days 31 to 60: fix leaks and stop waste. Days 61 to 90: decide the permanent role and write the hire spec.
Key facts
- Average CMO tenure at Fortune 500 companies was 4.3 years in 2024, still shorter than the C-suite average of 4.9 years, according to Spencer Stuart’s CMO Tenure Study 2025.
- In the same study, 65% of exiting Fortune 500 CMOs were promoted or moved to lateral or step-up roles at other companies. Good CMOs get recruited away, so plan for the exit before it happens (Spencer Stuart).
- Executive search firm Talentfoot estimates it takes 3 to 4 months to fill a CMO role (Talentfoot). Your 90-day window will likely close before a permanent hire starts.
- Gartner’s 2025 CMO Spend Survey found marketing budgets flat at 7.7% of company revenue, with 59% of CMOs saying they lack the budget to execute their strategy (Gartner). Unmanaged spend during a vacancy is money you do not have.
- The Geisheker Group’s Fractional CMO Leadership starts at $10,000 per month with a 90-day minimum sprint, which matches this window.
The 90-day plan at a glance
| Phase | Goal | What you do | Owner | Done when |
|---|---|---|---|---|
| First 72 hours | Control | Secure logins, ad accounts, CRM admin, domain and website access, agency contracts, and budget authority. Tell the marketing team and sales leaders who is in charge. | CEO, with IT and finance | You hold admin access to every system and every vendor knows who approves spend |
| Days 1 to 30 | Protect pipeline | Inventory every live campaign, tool, and vendor. Check lead flow and handoff to sales weekly. Talk one on one with every marketer. | Interim leader | Lead flow is stable and no key person has quit |
| Days 31 to 60 | Stabilize | Fix tracking gaps and lead leaks. Cut spend that cannot be tied to pipeline. Renegotiate or end weak agency contracts. | Interim leader, CEO approves | Budget is tied to measured results and the team has written priorities |
| Days 61 to 90 | Decide | Choose the permanent role (CMO, VP, director, or continued fractional). Write the hire spec from what you learned. Start the search. | CEO, with interim leader | Hire spec approved and search or extended engagement under way |
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First 72 hours: secure access and communicate
Most of the damage after a CMO leaves comes from things nobody can find. The departing leader often holds the only admin login to the ad accounts, the marketing automation platform, or the analytics property. Agencies take direction from whoever called them last. Fix that before anything else.
- Get admin access to every system. Google Ads, LinkedIn Campaign Manager, Meta, your CRM, your marketing automation platform, Google Analytics, Search Console, the website CMS, the domain registrar, and social accounts. Add a second admin you control, then remove the departing leader’s access on their last day.
- List every vendor and contract. Agencies, freelancers, software subscriptions, events, and sponsorships. Note renewal dates. Some auto-renew inside your 90 days.
- Freeze new spend commitments. Existing campaigns keep running. New contracts, new tools, and new budget increases wait for approval from you or the interim leader.
- Pull the data. Export the last 12 months of lead, pipeline, and spend data while the person who understands it is still reachable.
- Tell the marketing team first. Say who they report to now, what stays the same, and when they will hear more. Uncertainty drives your best people to update their LinkedIn profiles.
- Tell sales the same day. Sales leaders worry about one thing: whether leads keep coming. Tell them who owns lead flow and how to raise problems.
- Tell your agencies. One email naming the single person who approves work and spend.
Days 1 to 30: protect pipeline, audit, keep the team
The first month is not the time for a new strategy. It is the time to make sure revenue does not drop while you learn what you actually have.
Protect pipeline. Look at inbound leads, sales-accepted leads, and pipeline created each week, compared with the same weeks last quarter. A drop in week two or three usually means something broke: a form, a tracking tag, a paused campaign, a nurture sequence nobody owns.
Audit what is running. Build one sheet that lists every campaign, channel, tool, and vendor, what it costs per month, and what it produces in leads and pipeline. In my experience, most B2B companies find several line items nobody can explain.
Keep the team. Meet every marketer one on one. Ask what they own, what is blocked, and what they think should stop. The people who stay through a leadership change are the ones who feel someone is paying attention. If one person holds critical knowledge, such as the only person who understands the CRM, make sure that knowledge gets written down this month.
Days 31 to 60: stabilize, fix leaks, decide what to stop
By day 30 you know what is running and what it produces. Now act on it.
- Fix measurement first. If you cannot connect spend to pipeline by channel, fix tracking and CRM source fields before making budget calls. Everything else depends on this.
- Fix the lead handoff. Check how fast sales follows up on inbound leads and how many leads sit untouched. Slow follow-up wastes the leads you already paid for.
- Stop what cannot prove value. Campaigns, sponsorships, and tools that cannot show a link to pipeline get paused or cut. Moving that money into channels that do produce pipeline is often the fastest win of the whole 90 days.
- Review agency contracts. Keep agencies that report on pipeline, not just clicks and impressions. Renegotiate or exit the rest.
- Write down priorities. Give the team a one-page list of what matters for the next quarter, with owners and numbers. This replaces the direction they lost when their leader left.
Days 61 to 90: decide the permanent role and write the hire spec
Do not write the job description on day one. Write it on day 61, after you have seen the real state of marketing. What you learn in the first two months often changes the role you need.
Answer these questions before you start a search:
- What is the job for the next two years? Building a demand engine from scratch, scaling a working one, repositioning the company, or supporting an exit. Each calls for a different leader.
- What level? A company with a small team and an unclear go-to-market may need a senior strategist above a strong director, not a full-time CMO yet. A company with a large team and budget needs a full-time executive.
- What must they have done before? Name it specifically: “built pipeline from outbound and paid search for a mid-market SaaS company,” not “strong B2B experience.”
- What will you measure in their first year? Pipeline created, cost per opportunity, revenue influenced. Put the numbers in the spec.
If the answer is a full-time hire, the search will likely run past day 90. Plan who leads marketing in that gap. For the full hiring process, see how to hire a fractional CMO, and for the trade-offs between models, see fractional CMO vs full-time CMO vs agency.
Where interim CMO services fit in this window
A CEO can run the first 72 hours alone. Days 1 to 90 are harder. Most CEOs do not have the time to audit every campaign, judge an agency’s reporting, or know which tracking gaps matter. That is the work interim CMO services cover: a senior marketing leader who steps in, owns the playbook above, and hands off a stable function and a clear hire spec.
What a good interim leader does in this window:
- Takes over vendor and budget approval so nothing new gets signed without review.
- Runs the audit and gives you one page on what to keep, fix, and stop.
- Manages the team week to week so your marketers have a leader, not a vacuum.
- Writes the permanent role spec from evidence and helps you screen candidates.
- Briefs the new hire so they start on day one with clean data and a working plan.
People often ask whether they need an interim CMO or a fractional one. The short answer: an interim leader fills a gap until a permanent hire arrives, while a fractional leader can also be the long-term answer. Read the difference between a temporary CMO and a fractional CMO for the full comparison. If you are new to the model, start with what a fractional CMO is.
At The Geisheker Group, my partner Michael Pecora and I are two senior B2B CMOs. We work with B2B companies with $2M+ in annual revenue and well-funded startups in technology, SaaS, AI, and PE-backed businesses. Our Fractional CMO Leadership starts at $10,000 per month with a 90-day minimum sprint, which lines up with the window above. See how fractional CMOs charge for how pricing works across the market. My own career results include 6X inbound lead growth, 77% lower paid acquisition costs, and managing more than $50M in annual ad spend. Our fee reflects senior experience and outcomes, not time.
Frequently asked questions
What should I do on the day my CMO resigns?
Get admin access to every marketing system and ad account, list every vendor contract, and freeze new spend commitments. Then tell the marketing team and sales leaders who is in charge. Do this before the departing leader’s last day, while they can still hand over logins and explain the data.
Should I promote someone from the marketing team into the CMO role?
Sometimes. Spencer Stuart found 58% of Fortune 500 CMOs were promoted from within (Spencer Stuart). Give a strong internal candidate a defined interim scope and judge them on the 90-day results before you make it permanent.
Should I pause all marketing spend until a new leader arrives?
No. Pausing everything can cut off pipeline that took months to build. Keep campaigns that produce measurable pipeline running, freeze new commitments, and cut only what cannot show results after your 30-day audit.
How long will it take to hire a permanent CMO?
Talentfoot estimates 3 to 4 months to fill a CMO role (Talentfoot). Add time for the new leader to learn the business. That is why you need a plan for who leads marketing between departure and the new hire’s first productive month.
What should an interim CMO hand over at the end of 90 days?
A clean inventory of campaigns, tools, and vendors with cost and results for each. Working tracking from spend to pipeline. A written list of priorities for the team. A permanent role spec with first-year targets. The new hire should be able to start executing, not start auditing.
Get a plan for your next 90 days
If your CMO or VP of Marketing just left, you do not have to work through this alone. Book a free 30-minute growth plan session on Google Meet with Michael and me. We will look at where your marketing stands and send you a written growth plan within 3 business days. No hard sell. We take 10 companies a month.
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