Most Promotion Decisions Start With the Wrong Question
A critical role opens up, whether it's a VP of Sales, Head of Marketing, or another revenue-generating leadership position, and someone around the table says, "We should really develop from within." Everyone nods. Then the external search begins anyway.
I've watched that exact moment play out in more boardrooms than I can count. And here's what I've come to believe: that gap isn't a pipeline problem. It's a readiness problem. Most organizations never stop to make the distinction — and it costs them.
Why Internal Mobility Still Wins
The case for internal promotion is hard to argue with, and most leaders already know it.
External hires often come with longer ramp-up periods and higher compensation costs than internal promotions — both of which contribute to the total cost of a leadership transition.
Employees who make an internal move are 40% more likely to stay at least three years.
Replacing a failed leadership hire can cost upward of 200% of that person's annual salary. And that figure only captures the direct costs. The broader impact is harder to measure and often far more expensive.
The math isn't subtle.
For sales and marketing leaders, that continuity carries a dollar value that rarely shows up on a job requisition. Your best people understand the buyer personas, the sales cycles, the customer relationships that took years to build. Lose that institutional knowledge — or dilute it with an external hire who needs 12 to 18 months to hit full stride — and you've paid a real price.
Most organizations say they value internal mobility. Far fewer actually fill leadership roles from within. The direction is right. The challenge lies in the execution.
The Readiness Gap
Here's where promotion decisions go sideways. Organizations confuse three things that are related but not the same:
Performance — Is this person succeeding in their current role?
This is what gets measured. It shows up in reviews, rankings, results, and reputation.
Potential — Can this person grow?
This is what gets debated in succession conversations. High-potential lists exist for exactly this reason.
Readiness — Can this person succeed in the role the business will need next?
This is the one almost nobody assesses. And it's the only question that actually matters when a leadership seat opens.
The mistake isn't confusing performance with potential. It's confusing both of them with readiness.
The distinction matters. Readiness isn't simply "can they do the job today?" It's whether they can perform in the role the organization will require tomorrow, against a future state that may look substantially different from what exists right now. It's a distinction that matters especially now, when the role itself may have fundamentally changed.
Research consistently shows that a significant share of internal moves involving high-potential employees end in failure — not because the person lacked talent, but because nobody evaluated readiness before pulling the trigger.
Think about it this way. A top-performing account executive and a great sales manager need fundamentally different skills. One closes. The other coaches, forecasts, builds, and holds structure. A campaign manager who builds high-converting funnels isn't automatically equipped to lead a revenue-aligned marketing function, align with the C-suite, and operationalize brand strategy across channels.
The role they're stepping into is a different job — not a bigger version of the one they had. Leadership fit is contextual — the capabilities that make someone an exceptional sales leader at one stage of growth aren't always what the next stage demands. That dynamic plays out more often than most organizations expect.
When you skip the readiness assessment and lean on performance history and gut feel, you set strong people up to fail in roles that were never properly measured against what the business actually needs.
When External Is the Right Answer
Sometimes going external isn't a workaround. It's the strategic call.
The clearest signal is a capability gap your timeline won't let you close. If you need a VP of Marketing who can build and scale demand generation from scratch, and that skill set simply doesn't exist on your team, you're not choosing between internal and external. You're choosing between what you need and what you have. Developing toward a capability that isn't there yet takes 18 to 24 months, sometimes longer. If the business can't wait, the external hire is your answer.
Transformation is the other trigger. Spencer Stuart's 2024 CEO Transitions report found that 44% of new S&P 1500 CEOs came from outside the company — the highest level in more than two decades. Boards weren't rejecting internal talent. They were responding to change and the need for capabilities that didn't exist internally.
The same logic holds below the CEO level. When a company needs to reset its go-to-market strategy, break a legacy sales model, or enter a new segment, an external hire is often better positioned to make the hard calls — because they didn't build what they're being asked to change.
The Question That Changes Everything
Most hiring conversations start with Who? — who gets promoted, who's available outside, who fits the description.
The more useful question is: What does this role actually need to accomplish in the next 18 months?
That answer tells you whether you're hiring for continuity or transformation. Whether institutional knowledge is an asset or a blind spot. Whether your internal candidate's depth is a head start, or whether the role demands capabilities you haven't built yet.
If the answer is "execute against a known playbook and reinforce what's working," your internal candidate who knows the system has a real advantage before the first conversation begins.
If the answer is "rebuild the function and change how we connect marketing to revenue," you may need someone who's never lived inside your current model.
The companies that get this right aren't the ones who promote more or hire externally more. They're the ones who answer that question honestly — and then run a rigorous readiness assessment before the decision, not after a role has sat open for sixty days.
What Strong Promotion Decisions Require
Internal mobility isn't an HR initiative. For sales and marketing leaders, it's a talent strategy with direct consequences for team performance, retention, and organizational continuity.
The organizations that consistently get it right aren't better at promoting people.
They're better at distinguishing between performance, potential, and readiness.
Those three things are often related.
They are not the same thing.
Questions Leaders Often Ask
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High potential reflects an employee's ability to grow into larger responsibilities over time. Promotion readiness reflects their ability to succeed in a specific role today. The two are often confused. An employee may have tremendous long-term potential but still need experience, leadership development, or business exposure before being ready for a promotion. Promoting based solely on potential can create unnecessary risk for both the employee and the organization.
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Success as an individual contributor and success as a manager require different skills. Top performers are often rewarded for personal expertise, problem-solving, and execution. Managers must develop others, delegate effectively, provide feedback, and drive results through a team. Without support and development, even high-performing employees can struggle when asked to lead people rather than perform the work themselves.
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Organizations should evaluate readiness based on demonstrated behaviors, not assumptions. Look for evidence that the individual is already operating at the next level through decision-making, communication, collaboration, leadership influence, and business judgment. Structured assessments, development plans, and stretch assignments can provide a clearer picture than relying on tenure or performance reviews alone.
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Whenever possible, employees should be given opportunities to demonstrate readiness before promotion. This may include leading projects, mentoring colleagues, managing cross-functional initiatives, or participating in leadership development programs. These experiences help organizations evaluate readiness while giving employees valuable exposure to the responsibilities of the next role.
