Six months is usually when it shows up. The person you promoted or brought in from outside is through the honeymoon period, they’ve started making real decisions with real budget, and something has gone wrong that didn’t have to.
Maybe it’s a CRM that nobody on the team is using properly. Or the incentive plan has a gap that’s paying out without driving the right behaviour. There’s often a hire sitting in the team who looked fine on paper and isn’t working out.
Founders are rarely surprised that a decision went wrong. What they’re not ready for is that their sales leader didn’t see it coming. That the judgment wasn’t there yet.
Building commercial judgment in a new sales leader barely gets discussed. Founders assume it will emerge once the person is in the role, that the title and the authority are enough. I’m yet to see a case where they were.
The Promotion Doesn’t Come With the Judgment
Commercial judgment is a specific thing and it isn’t the same as sales instinct. Good salespeople tend to have instinct in abundance, which is partly what got them promoted.
A great salesperson has spent years learning to read buyers but the judgment a sales leader needs is about people, budget, tools, and competing priorities under pressure. All that is a different set of muscles, and getting the job doesn’t build them.
New sales leaders usually don’t know what they don’t know here and founders usually don’t realise that’s the problem until something’s already gone wrong.
The Decisions That Expose the Gap Fastest
New sales leaders almost always get coaching time wrong, though usually not because they don’t care about the team. What I see in practice is that they gravitate toward the people they find easiest to talk to, or the top performers who mainly want a sounding board, and the people sitting in the middle of the distribution, not struggling but not excelling either, end up with structured attention last. That middle group is typically where the real coaching returns are, and most new leaders figure that out later than is useful.
They haven’t started thinking about coaching as an allocation problem yet, and that way of thinking doesn’t come naturally from the selling side.
Incentive design is where some of the more expensive mistakes happen. The plans new sales leaders build tend to reflect what motivated them when they were selling, which often has little to do with what the business actually needs right now.
I’ve watched salespeople find the edges of plans that looked airtight. If a metric can be gamed it will be, not because anyone is trying to rip the business off but because finding the edge of the target is literally what salespeople are trained to do. Getting this wrong doesn’t just produce unintended payouts. It reshapes team behaviour in ways that take months to unwind.
New sales leaders hire in their own image more reliably than almost anything else I observe. The candidate who sells the way they used to sell feels right, the one who’d actually fill a gap in the team is harder to see, and without a clear process for working out what the team actually needs, most new leaders default to the familiar without knowing that’s what they’re doing.
Technology spend is where the financial exposure tends to be clearest and hardest to reverse. The AI and SaaS market is enormous and vendors are very good at selling to buyers who are still figuring out how to evaluate them. A new sales leader without a framework will default to what they used in a previous role, or what felt compelling in a demo, or what someone in their network mentioned without much context, and by the time the tool is embedded and the contract is running, reversing course costs considerably more than the invoice.
Why Founders Underestimate Their Role in This
There’s an assumption I hear from founders regularly, usually unstated: getting the right person into the role is the hard part, and once that’s done the capability will take care of itself because the person has a track record and was clearly good enough to get here.
The problem is that judgment doesn’t develop through exposure. It develops through making decisions, living with their consequences, and having someone connect those two things often enough that the pattern becomes visible, and without that connection being made deliberately by someone, experience just accumulates without turning into anything.
Most founders I work with are either too removed from their sales leader’s commercial decisions because they don’t want to undermine someone they’ve just backed, or they come in reactively once something has already gone wrong, and neither of those creates the conditions where judgment actually builds.
The founders who get this right are the ones who stay genuinely curious about the reasoning behind decisions, asking how a call got made rather than just whether it landed well, because that’s the only conversation that changes anything before the next decision arrives.
How to Build It: What Actually Works
The decision debrief is something I rarely see done well, and timing matters more than people assume. Running it a few months after a decision, once the consequences have started to show up, is when the conversation gets useful. You’re asking how the decision got made: what was on the table, what got discounted, where the assumptions turned out wrong.
New sales leaders regularly make budget calls without a clear picture of what those calls are supposed to return. If your sales leader is considering a new tool or platform, I’d want them sitting with a few questions before the vendor gets too far into the conversation:
- What specific problem is this solving and how are we currently handling it?
- What does adoption actually require from the team and is that realistic in the next ninety days?
- What does success look like at the three-month mark and how would we measure it?
- What’s the cost of being wrong, financially and operationally?
The one-on-one is where a lot of time gets wasted. Pipeline reviews eat up most of it, and the questions that actually build judgment tend to feel uncomfortable at first, mainly because most new sales leaders haven’t been asked them with any consistency:
- What’s the hardest call you’ve made this month and what was your reasoning?
- Where are you most uncertain about something you’re about to decide?
- If you had to reallocate your coaching time right now, what would you change and why?
What Good Judgment Looks Like When It’s Developing
The signal most people watch for is better outcomes, which makes sense but doesn’t tell you much given how noisy sales results can be across any given quarter. What’s actually worth watching is whether the reasoning is getting better before decisions are made.
In practice that shows up in small ways before it shows up in results. Your sales leader starts bringing context to conversations you didn’t ask for. They push back on a vendor pitch or a hiring recommendation because they’ve actually worked through it. You start hearing them name what could go wrong before they’ve committed to something.
In my experience that shift tends to show up somewhere between nine and eighteen months in, and it’s not guaranteed. Some people who are excellent at selling don’t develop the commercial judgment a leadership role requires, and that’s worth knowing at twelve months rather than at two years. If the reasoning hasn’t shifted by then, it’s worth a direct conversation about it.
The businesses I work with that get this right aren’t doing anything particularly formal. They’re creating conditions through regular conversations, through financial accountability, through genuine curiosity about how decisions are being made, where the sales leader has to think harder and articulate more clearly than they would otherwise. The development comes out of that, steadily and mostly in conversations that won’t feel important at the time.
Where to Start
If you’re managing a new head of sales and most of your time together has been spent on pipeline, that’s worth reflecting on. The conversation about how they’re making decisions, what they’re uncertain about, what they’d change if they thought about it differently, tends to feel unfamiliar early on for both of you.
It also takes longer to produce anything visible. But I’d rather a founder have this conversation at month three than explain to me at month eighteen how a contract got signed that nobody properly evaluated, or an incentive plan started paying out in a direction nobody intended.
