First Day in a New Marketing Role: The 90-Day Plan
Luke Costley-White
初日の礎
Foundation of the First Day
Nobody Onboards You Properly. That’s Your Problem Now.
88% of companies have poor onboarding (Gallup, 2024). 60% won’t set you any goals or milestones before you start. And CMO tenure is now 4.1 years, well below the C-suite average of five years (Spencer Stuart, 2026).
Do the maths. Your 90-day plan isn’t coming from HR. It has to come from you. Starting on day one.
Before You Walk In
Most people spend their first day getting their bearings. The smart ones spend the week before it.
In your final week, do three things:
1. Run a competitor intelligence scan. Search LinkedIn for your direct competitors: what are they posting about, what’s getting traction, what are they conspicuously not saying? Check their blog, their ads (Facebook Ad Library is public), their recent news. You’re not building a strategy yet. You’re getting a map.
2. Do a quick social listening sweep. Open Reddit and search your industry topic. Check the subreddits relevant to your space. What are people complaining about? What questions get 100 comments and no good answer? These are your first clues to what your market actually cares about. Not what the company website says it cares about.
3. Read the LinkedIn profiles of the 5–7 people you’ll work most closely with. Not to find talking points. To understand their backgrounds, what they’ve shipped, what they’re proud of. Stakeholder dynamics often make more sense through someone’s history than through their job title.
Come in with a questions list. Not an ideas list.
You’re a consultant on day one, not an employee.
The 5 Things to Do on Day One
1. Build the Context Map (30 minutes)
Before anything else, understand what marketing is actually accountable for here.
Ask: What does marketing own in the revenue model? Is it brand, pipeline, or both? What does “good” look like at 90 days? What did the last person in this role get credit for? And what did they get blamed for?
Have this conversation with your direct manager first thing. It anchors everything. Without it, you’re executing without a target. Most new marketers skip it because it feels too basic to ask. It isn’t.
Write the answers down.
2. Run the Data Audit (45 minutes)
Get access to every data source available: GA4, your ads platforms, CRM, email. Don’t analyse anything yet. Just check: is the tracking set up properly? Are conversions being recorded? Is there attribution in place?
The chances that something is broken, partial, or measured inconsistently: high. Almost every marketer inheriting a role finds something. The sooner you know, the sooner you can fix it, and the sooner you can prove your impact later.
Once you have the data, paste the last 30 days of performance into your AI assistant and ask it this:
“Here is our marketing performance data for the last 30 days. Summarise what’s going well, where we’re wasting budget, and the 3 most important changes we should make.”
You’re not making decisions from this yet. You’re building a diagnostic snapshot: the baseline everything else measures against.
3. Map the Stakeholder Landscape (20 minutes)
Identify the 5–7 people who have opinions about marketing here. Who controls the budget? Who does marketing serve: sales, product, the CEO directly? Who is going to redirect your priorities in week two?
Pay particular attention to the gap between what marketing claims to produce and what sales thinks it produces. That gap is almost always present. It’s invisible on day one and becomes a serious problem at day 60. Find it now.
Then do something most new marketers skip: write down the top 3–5 reasons your strategy could fail in this role. Not as pessimism. As preparation. Political blockers, missing data, under-resourced teams, unclear ownership. The ones you name on day one are the ones you can actually plan around.
4. Audit the Marketing Stack (30 minutes)
List every tool in use, what it’s for, and who owns it. You’ll almost certainly find tools nobody uses anymore, subscriptions that auto-renewed, and data sitting in three places that don’t talk to each other. Normal. Happens everywhere.
Do not propose a new stack yet. The “obvious problem” often has a reason behind it: sometimes a good one, sometimes legacy politics. Understand it before you change it.
5. Write Your First Impressions (15 minutes, end of day)
Do this before you drive home. Stream of consciousness: What surprised you? What’s more broken than expected? What’s stronger than the job description suggested? What felt off?
You will never have this outsider clarity again. Within two weeks, you’ll start explaining things the way everyone else in the company does. The observations you capture today are your first hypotheses, and they become the foundation of your 90-day plan.
One More Prompt: Your Market’s Live Voice
Paste this into your AI assistant on day one or in your first week:
“Search LinkedIn and Reddit for discussions about [your category/industry] from the last 90 days. Summarise the major themes, the most common questions people are asking, and any questions that come up repeatedly with no good answer.”
What you’re looking for: the gap between what your company says about the market and what the market actually says about itself. New marketers who find that gap in week one and close it in their content and messaging tend to move significantly faster than those who spend six months building strategy from internal documents.
Now Turn It Into Your 90-Day Plan
You’ve done the diagnostic. Now use it.
Copy your notes from each of the five steps above and paste them into your AI assistant with this prompt:
“Here is everything I found on my first day in a new marketing role. Based on these observations, help me build a structured 30/60/90 day plan.
Days 1–30 should focus on listening and diagnosing. Days 31–60 on aligning and planning. Days 61–90 on executing and proving impact.
My context map: [paste your answers] My data audit findings: [paste key observations]* My stakeholder map: [paste your notes]* My stack audit: [paste your list]* My first impressions: [paste your notes]*
For each phase, give me 3–5 specific priorities, the questions I should be trying to answer, and what a successful outcome looks like. Flag anything in my notes that looks like a risk I should address early.”
This won’t write your plan for you. It will give you a structured first draft to react to, edit, and own. The quality of the output depends entirely on the quality of what you put in — which is why the five steps above matter.
To capture the full plan, track progress across all three phases, and run your weekly check-ins, use the DOJO AI 90-Day Marketing Plan Notion Template.
How Day One Builds the 90-Day Plan
Day 1 Action | What It Informs |
|---|---|
Context Map | Days 1–30: Aligning on what marketing is here to do |
Data Audit | Days 1–30: Establishing the baseline you’ll measure against |
Stakeholder Map | Days 31–60: Securing alignment before you execute |
Stack Audit | Days 31–60: Deciding what to keep, cut, or replace |
First Impressions | Days 61–90: The hypotheses you’ve validated or disproved |
The 30/60/90 structure isn’t three separate phases. It’s one arc. Day one is where it starts.
The Day One Checklist
Get access to all marketing data sources and verify tracking is working
Ask your manager: what does “good” look like at 90 days?
List all live campaigns, channels, and current budgets
Run the 30-day diagnostic prompt with your performance data
Identify and map your 5–7 key stakeholders
Note the gap: what does sales say about the leads marketing generates?
List every tool in the current marketing stack
Write your first impressions before you leave. Stream of consciousness, 10 minutes
Run the 90-day planning prompt with your day one notes
Further Reading
If this guide is useful, these three go deeper on what comes next:
The B2B Marketing Function Setup Playbook — Built for first and solo B2B marketers. Covers the order of operations across the first 90 days in detail, what the hiring manager should have ready before you arrive, and the five interview questions worth asking before you accept any role.
Corporate to Startup Marketing: What to Keep and Unlearn — For senior marketers making the jump to a challenger brand. Covers what corporate experience to keep, what to actively unlearn, and what to build in your first 90 days without the machine behind you.
I’m Not a Salesperson: What I’ve Learnt — For marketers who end up in commercial conversations. Why your instincts are better than any sales script, and how to build a pipeline motion without becoming someone you’re not.
DOJO AI gives new marketing leaders a unified view of all their data, campaigns, and market intelligence from day one. No setup overhead required. If you want to run the diagnostics from this guide automatically, across every channel, it’s worth a look.
