Before you can have the conversation, you need to understand what you're actually dealing with.
When someone is passed over for a promotion — especially one they wanted, prepared for, and felt they deserved — the experience is rarely just disappointment. It sits closer to a verdict. They didn't just lose out on a title or a pay rise. They received an institutional judgment about their value relative to yours, delivered in public, with no right of appeal. That lands differently than any feedback conversation.
The fact that you are now their manager compounds it. Every interaction carries a new subtext. When you give feedback, they hear it filtered through the sting of the decision. When you make a call they disagree with, there's a voice in the room — quiet, perhaps — asking whether they would have done it better. None of this is unusual. It's just human, and it's happening whether anyone says so or not.
The politeness isn't neutrality. It's management. They are managing their reaction — and probably managing you at the same time.
The two cards below map what both people are typically carrying in this situation. Read them honestly — you'll recognise most of it.
Neither of these lists is a character flaw. They are predictable, human responses to a genuinely difficult situation. The problem is not that these feelings exist. The problem is what happens when both people keep performing normalcy while these things go unaddressed. The relationship doesn't improve over time. It calcifies.
A hard truth: the longer you wait, the more loaded the conversation becomes. The first weeks after a promotion are actually the easiest window to have it. If you're reading this months later, that's fine — but you'll need to acknowledge the gap explicitly when you do finally talk.
There is one conversation that needs to happen. Not a series of hints. One direct, human exchange — led by you — that names what's in the room and creates the conditions for something better.
Most managers avoid this conversation not because they don't care, but because they can't find the right words. They worry about opening wounds, about sounding patronising, about saying the wrong thing and making it worse. These are legitimate concerns. But the cost of not having it is higher than the risk of getting it slightly wrong.
The framing that works is not an apology — you didn't do anything wrong. It is an acknowledgement: of the situation, of what they're probably carrying, and of what you want to build from here.
There is a version of this conversation where the manager's real goal is to feel better themselves — to discharge their guilt, be told everything's fine, and move on. That version doesn't work for the other person, and they will sense it.
Your actual goal is simpler and harder: to make it safe for them to be real with you. The conversation is not for you. It is for them. That distinction changes everything about how you go into it.
You do not need a script. You need a shape.
On timing: this is a one-to-one conversation, not a team conversation. It should happen privately, during a regular meeting if possible rather than a specially convened one — which can feel like a bigger deal than you want it to.
Several approaches consistently make this worse. They can feel like the right move in the moment. Click to flag any you've already tried.
These are not scripts to read from. They are examples of how a direct, honest conversation can actually sound — because it's easy to know you need to be direct and still find yourself in a fog when the moment arrives.
This is the conversation most managers defer until it becomes a bigger deal than it needed to be. Here's a version that gets straight to it without being heavy-handed:
Sometimes the conversation opens further than you expected. That's actually the better outcome. Here's how to hold it without becoming defensive:
Sometimes the person just shuts down. Not hostile — simply not available. The right response is not to push harder.
What to do when they won't engage: Don't force the conversation in the moment. Instead, name what you're observing at the close of the meeting: "I get the sense you're not ready to have this conversation yet — that's completely fine. But I want you to know the door's open whenever you are." Then watch the pattern. A single deflection is not a crisis. A consistent pattern of withdrawal is a different thing — and will need a more direct follow-up.
The most dangerous version of this situation is not the one where someone is visibly difficult. It is the one where everything looks fine on the surface while the relationship and the team dynamic quietly corrode underneath.
Most people in this situation are professional enough to hold it together in obvious ways. They show up, they deliver, they don't make scenes. The deterioration happens at a lower register — in the texture of interactions rather than in behaviour that would clearly justify a performance conversation.
The warning signs below are worth reviewing periodically, particularly in the first three to six months after a promotion. Spotting them early is not paranoia. It is management.
If you're seeing two or more of these consistently, the relationship has moved from "needs a direct conversation" to "needs active management." Don't wait for a single dramatic event to justify addressing it.
Most of the time, this situation is yours to manage directly. But there are clear circumstances where staying solo is the wrong call.
The judgment call comes down to two questions: is this situation beyond what a direct, honest working relationship can resolve? And are there risks developing that could affect the team, the person, or the organisation that need to be documented or managed formally?
Your manager should know the relationship exists and that you've been managing it — not because you need rescuing, but because they may have context about the promotion decision or organisational dynamics that is useful to you. The earlier conversation is: "I wanted to let you know I've been actively managing this. Here's where things are." That's different from: "I don't know what to do."
Bring them in more actively if: the person's behaviour is starting to affect team performance; the pattern has continued despite two or more direct conversations; or you're starting to consider formal performance management.
HR's role here is not to manage the relationship for you — it is to advise on process, help document appropriately, and ensure you're managing within the bounds of employment law and company policy. Involve them when: the situation has progressed to formal performance management; there is any suggestion the person is framing the situation as discrimination or unfair treatment; or you're uncertain about what steps are available.
A note on documentation: if the relationship is deteriorating, start keeping a simple factual record now — not a dossier, but a note of specific behaviours, dates, and conversations. You won't need it if things resolve. But if they don't, a factual record is significantly more useful than a retrospective account of how things felt.
You Didn't Do Anything Wrong. You applied for a role. You got it. That is a normal event in working life, and you did not deprive your colleague of anything they were owed. The situation is difficult not because someone is at fault, but because it involves real human stakes. The kindest thing you can do for this person is not to be extra nice to them. It is to be real with them — to treat them as someone capable of processing a difficult situation and coming through it. Most people can. They just need someone willing to be honest about what's in the room.
Tick each item when it's genuinely true — not as aspiration, but as readiness.
The awkwardness won't resolve itself. But one honest conversation can change the entire dynamic.