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How new data leaders build credibility in their first 90 days

Data leaders are setting their agenda for next year right now. Lorena Hartl Polanco explains why the way you handle value belongs on it, and how to make your first 90 days count with executives.

Lorena Hartl Polanco

Lorena Hartl Polanco

GTM & Growth Manager

October 5, 2026

Data & AI Leadership

“We're really fast to say 20%, 100% because it's what management wants to hear. But basically, it's just a guess, isn't it?"

A few weeks ago, a data lead said that the value numbers reaching his board are guessed anyway. That’s an honest thing to admit. The number was set months earlier, because someone needed it to get the initiative approved.

At Mindfuel, we hear a version of that sentence often. You can almost say that business cases are inflated in order to get them prioritized. Or, in other words, whoever screams the loudest wins. We hear the same pattern from the people sitting at the table where those decisions are made, no matter the industry or the size of the team or organization.

If you're a few weeks into a new data seat, you'll probably recognize that kind of number in the demands landing on your desk. As you just stepped into your new seat and building out your own structure, it makes it the best moment to decide how value gets tracked from here on.

In this article, I want to talk about how to make your first months count, and why the way you handle value belongs on your agenda right from the start.

Why the first 90 days matter

Getting a seat at the table isn't really the problem anymore. Deloitte's 2025 Chief Data Officer Survey found that 87% of CDOs now report directly into the C-suite. Yet 54% still feel less influential than their peers.

At this year's 20th CDOIQ Symposium, veteran data leader Peter Aiken put the average CDO tenure at about 18 months. That sounds brutal when you first read it. But the more I listen, the less it seems like the job is simply hard, and the more it sounds like something very specific: how a seat at the table turns should rather turn into real influence?

That question rarely comes up in the first weeks. Most of that time goes into meeting colleagues, understanding the systems and processes, sorting through the requests landing on your desk.

But while you’re getting oriented, something else happens in the background. Especially around this time of year, next year’s strategic themes are being set, separate from business as usual. The role usually comes with a broad mandate, and expectations that are high and a little vague at the same time, those themes quietly become what you’ll be measured on.

Once priorities get set, the question stays always the same: what will all of this actually return?

The easy part and the hard part have swapped places

For years, building was the constraint. You needed specialists, infrastructure, budget, and time to ship anything real, and the data team was the bottleneck. That’s fairly no longer the case.

Almost any team can now put something live in days: a dashboard, a model, an agent, or a quick pilot. In a Bain & Company survey, 81% of respondents are already implementing AI beyond pilots. New use cases are popping up everywhere in the company.

Getting things built stopped being the bottleneck. Picking the right things, and showing what they were worth, became the new one. In the same survey, 64% named demonstrating clear ROI as a barrier.

You could fairly ask whether any of this holds when everyone can build. If a business unit can spin up its own agent in an afternoon, who needs a central team fussing over use cases?

Easier building actually makes that job bigger. When building was scarce, you could track everything in a spreadsheet. When every team is building its own agents and automations, the organization loses sight of what exists, what it costs, where it overlaps, and whether any of it works.

The question shifts from "can we build it" to "should we, does it already exist somewhere else, and is it actually generating value?"

A leader who spends the first 90 days accumulating visible activity like dashboards shipped, meetings held and pilots launched can still end the quarter with nothing anyone will vouch for.

What turns a seat into influence is being able to show, in terms the business already trusts, that the work pays off. And the easiest moment to set that up is right at the start, before next year’s list is locked.

The value was never in the dashboard

This is the trap even very advanced teams fall into. Under pressure to show something, they reach for what is visible. A dashboard with strong adoption rates and a pilot that shipped on time.

Our own CEO and Co-Founder Nadiem says he’s seen plenty of dashboards with heavy daily use and zero, sometimes negative, business value sitting behind them. A tool people open every day proves the tool gets used. What it doesn’t prove is if anything got better. Usage and value are two different things, and the gap between them is where credibility can be lost.

Also watch: Don't Panic! It's Just Data Podcast: Why No Use Case Means No Value in Data and AI Investments

The value of a data or AI initiative comes from the decision underneath it: which problem you chose to solve, why that one over the louder one beside it, and what it was meant to be worth.

Gartner's survey of 782 infrastructure and operations leaders found that only 28% of AI use cases fully succeed and meet ROI expectations. Among the leaders whose projects stumbled, 57% said they had expected too much, too fast.

That choice is usually the least rigorous moment in the whole process. The value number gets written down fast, in the language leadership wants to hear, then disappears into a ranking nobody revisits. A perfect example is the quote at the opening of this article.

Without a shared way to define, score, and track a use case, value management turns into anecdote: teams claim impact with no agreement on what was promised, what was delivered, or what can actually be attributed. Prioritization becomes a negotiation, re-run every planning cycle and won by whoever is most senior rather than whoever is right.

What to actually do with your first 90 days

By this point the pattern probably looks pretty familiar. Almost anyone can build something now, requests are coming from everywhere, and a lot of the numbers attached to them were written to get something approved. In your first quarter, the job is to set up how value gets decided from here on, before next year's list is locked.

Start by agreeing on what success means before anyone starts judging results. CDAO Wendy Batchelder puts it well:

“Without that alignment, even strong execution can appear unsuccessful because different stakeholders may be evaluating outcomes through different lenses."

Most new leaders are defining their strategic projects for next year right now, separate from business as usual. In our conversations with data leaders, value management keeps coming up as one of the most strategic enablers on that list: a way to steer value, not just cost. If it isn't on your list yet, now is the easiest moment to add it.

Then look at what's asking for a spot on that list. Some of it is probably already half-built in another team, because AI made that easy. Before anything makes the cut, run it through the same few questions.

For every request, answer a few honest questions:

  1. Was a business problem ever written down behind it?
  2. Does it name a KPI, a baseline, and a target?
  3. Is the value estimate built on anything? How confident are we in the number, said plainly, high, medium or low?
  4. Do you know what it costs, and what could stop people from using it?
  5. Does something like it already exist somewhere else?
  6. Who owns it on the business side, and who checks the value by when?

Don't expect clean answers. Often the answer to the confidence question will be "low" or "nobody knows," and that's useful in itself. It tells you which projects are ready for next year's list and which ones need more work first.

None of this means skipping the quick win. Most first-90-days advice still recommends one, and a new leader does need something to point to. A quick win only counts if the people judging it agreed beforehand on what it was supposed to prove. So pick one that holds up against the questions above, rather than the one that's easiest to demo.

The harder part is saying no. You have capacity for a fraction of what's asked, and what gets questioned eventually is the call: why this, why now, was it worth it?

The people whose ask didn't make it will want to know why theirs didn't. If you can walk them through your answers, they may still disagree, but they can see how you got there. That's what executive trust comes down to: people can follow your reasoning without re-checking it themselves.

A good test by day 90: could you explain, for every strategic project on next year's list, what it's meant to return and how you'll know? If not, you know where the next quarter starts.

Where this leaves you

If you're early in a data or AI leadership seat right now, setting up your structure and your priorities for next year, this is the advantage nobody hands you on day one. You don't earn trust by shipping the most or staying busy.

You earn it by being the person who can explain why this, why not the other one, why now, and what it will be worth. That holds up long after the fifth prioritization meeting is done.

We've spent the last three years inside more than 50 data organizations watching this play out, which is the only reason we can say the pattern is this consistent. The teams that last are the ones who treat the decision, not the delivery, as the thing worth getting right.

If you're shaping your strategic themes for next year right now, happy to exchange on how other data leaders bring value management into their prioritization.

Lorena Hartl Polanco
Written by

Lorena Hartl Polanco

GTM & Growth Manager