From Peer to Boss: 9 Steps to Successfully Manage Former Colleagues
- Fern Beauchamp
- 2 days ago
- 7 min read
In a Centre for Creative Leadership (CCL) survey of first-time managers, nearly 60% cited the "adjustment to people management/displaying authority" as their biggest hurdle, largely because they struggle to assert authority over former friends and colleagues.
Managing former peers tops the list of tough leadership shifts.
According to Michael Watkins, chairman of Genesis Advisers and author of The First 90 Days, as cited in HBR, “If you take a typical group of mid-level executives and ask if they've ever been promoted to lead their peers, 90% of them will say yes".
The good news is that this leadership shift is learnable.
Your first 90 days matter because they set the tone for what follows. This 9-step guide to managing former colleagues gives you a practical plan to move from peer to boss with confidence.
Work shouldn’t suck for anyone, and this transition doesn’t have to either.
Contents
Why The Transition From Peer to Boss Feels So Hard
You’ve just been promoted. Yesterday, these were your peers. Mates you grabbed coffee with, vented to, and collaborated alongside.
Today, you’re their manager.
Exciting? Sure.
Awkward? Absolutely.
You’ve changed roles, but everyone’s mental model of you is still yesterday’s version – the relationship doesn’t automatically change just because the title does.
Research on role transitions suggests there’s an inertial pull in past relationships: we keep relating to people as they were, not as they are now. Colleagues may still crack the same jokes, vent to you as if you’re not the boss, or quietly resist your decisions. At the same time, imposter feelings can add some stress.
Challenges for First-Time Managers
New or first-time managers often overcorrect.
HBR highlights how leaders can become more controlling as they try to prove themselves, which undermines their credibility and relationships. This is exactly where a more coaching approach to leadership helps: instead of needing to “be the boss”, you lean into curiosity, questions, and shared problem‑solving.
What to Expect
Power dynamics change, even if no one talks about it.
Old friendships change; this requires boundaries, not drama.
People may test you, consciously or not.
Underneath all of this is a debunked leadership myth and one of Kinkajou's core principles: leadership is learned, not born.
9 Steps to Successfully Manage Former Colleagues
It's time to get practical. Here's a 9-step guide to successfully managing former colleagues.
Set Expectations
Clarity reduces anxiety. Clear expectations and shared goals reduce friction and increase trust. They also help you later when you need to challenge behaviour or performance – you’re not “suddenly changing the rules”; you’re coming back to what you agreed together.
In your first team meeting as manager, set a few expectations around where you want to go and the culture you want to shape with them - not for them.
“We speak up about risks, concerns, and mistakes early – nobody gets punished for raising a flag.”
“We give each other honest, respectful feedback; that includes me.”
“We commit to decisions once they’re made, even if we disagreed on the way there.”
“I’m learning. I’m going to make some mistakes, and I want us to be honest with each other as we figure this out.”
“We’ve worked side‑by‑side for a while, and I really value that history. My role’s different now, and I’d love us to build a new way of working that works for all of us.”
Reflect: What feedback have I asked for – and what did I do with it?
Understand What Motivates Each Team Member
Time invested in meaningful 1:1 conversations is a leadership must, not a luxury.
Tailor your approach to each person - one size never fits all. Give each team member space to:
Talk about what motivates them.
How do they do their best work.
Their career aspirations.
Any tensions or misunderstandings.
Offer and request feedback in both directions.
Powerful questions to ask
“What’s on your mind?"
“What’s the challenge for you?"
“How do you do your best work?"
“What motivates you?"
“How can I help?”
“What can I do more of or less of?”
Avoid Favouritism
When managing former peers, avoid favouritism, private in-jokes, and relying too heavily on the people who were closest to you before the promotion.
Even if you do not mean it that way, others will notice who gets more attention, easier access, or extra trust, and that can quickly create a feeling of “inner circle” versus “everyone else.” People who were not in that circle may start to worry that opportunities, feedback, and decisions are no longer fair, and that can damage trust, reduce engagement, and make them hesitant to speak up.
The safest approach is to be visibly inclusive, give everyone equal access to your time and information, and make your decisions transparent so the whole team feels respected and valued.
Reflect: Where might my old friendships be influencing my decisions more than I’d like?
Walk the Talk
Leadership is built through what you do repeatedly, not what you say once.
Your former peers are watching very closely. Role model behaviours you wish to see in others.
Speak respectfully about people, especially when they are not present.
Avoid gossip; don’t share one person’s frustration with another.
Don’t use confidential information from the “peer days” against people now.
Ask for feedback regularly and show that you can take it.
Admit mistakes quickly and explain what you will change.
Hold boundaries between friendship and management so your new role is clear.
Reflect: Am I role modelling the behaviours I wish to see in others?
Watch out for the Micromanagement Trap
The "micromanagement trap" is where leaders inadvertently erode trust by getting bogged down in the weeds of technical execution rather than empowering their people.
If you were also in their role previously, it's easy to fall into the trap of micromanaging.
Additionally, the temptation with former peers is either to let things slide (“I don’t want to be bossy”) or to over‑check everything (“I can’t afford to fail”). Neither works.
Here’s a handy checklist for avoiding micromanagement:
Focusing on the goals, team, and work by removing obstacles and creating conditions for others to excel, rather than positioning yourself as the hero or main problem-solver.
Encouraging individuals to explore their solutions.
Being clear on direction, goals and desired outcomes.
Understanding what support they may need from you.
Agreeing on progress check-ins (what, how often, in what format).
Reflect: How often am I slipping into doing my old job?
Shape the Culture
Shaping team culture starts with a simple but powerful conversation: what do we want our culture to be, and what is it today?
Leaders shape culture every day by what they do and what behaviours they reward or tolerate. As a leader, your job is to create a space where the team can talk honestly about the behaviours that help them do their best work, the habits that are getting in the way, and the standards they want to live by together. When those conversations are open and regular, culture becomes something the team actively builds rather than something that just happens around them.
Culture checklist
Start with a team conversation about the culture you want to create.
Ask: “What do we want our culture to feel like day to day?”
Ask: “What is our culture like today, honestly?”
Identify the behaviours you want more of, such as trust, accountability, openness, and respect.
Identify the behaviours you want less of, such as blame, cliques, or avoidance.
Agree on 3 to 5 simple team norms that everyone can remember.
Make those norms visible in meetings, decisions, and feedback.
Recognise and reinforce the behaviours that support the culture.
Be willing to name when actions do not align with the agreed-upon culture.
Reflect: What three words describe your aspirational culture?
Create Psychological Safety
Creating psychological safety means people feel safe speaking up, challenging you, asking questions, and admitting mistakes without fear of humiliation or retaliation.
Reinforce by:
Explicitly inviting challenge: “What am I not seeing here?”, “Who disagrees with this strategy?”
Thanking people when they raise a tough issue, even if it’s annoying.
Separating ideas from people: critique the proposal, not the person.
Being curious before being certain: “Say more about that” instead of “That will never work”.
When your former peers see you handle dissent calmly and fairly, they learn that your authority isn’t fragile – it’s grounded. This is culture‑shaping in real time.
Reflect: How do I handle being challenged by former peers?
Embrace Radical Candour
Often, leaders either avoid feedback conversations or go in too hard in them.
Giving and receiving feedback is a critical part of the job, and it doesn't come naturally to many of us. However, it becomes extra challenging when you need to give feedback to a former peer.
Check out our Leaders' Guide to Giving and Receiving Effective Feedback.
Reflect: When did I avoid a tough conversation with a former peer, and how can I have that conversation?
Focus on Your Leadership Development
A practical way to do the work on yourself as a leader is to build self-awareness through feedback, reflection, and structured learning.
That might mean working with a coach or mentor, completing a 360-degree review, or joining a leadership development programme like Kinkajou's EMPOWER to turn insight into action. The point is not just to “know yourself” better, but to practise new behaviours, challenge old habits, and grow in ways that are positively impactful to you and the people you lead.
Reflect: How aware am I of my leadership styles?
In Summary
Moving from peer to boss is a real leadership test. The leaders who handle it well consistently do three things: they strengthen relationships early, build trust through role modelling behaviours, and intentionally shape culture to make work better for everyone.
Your first 90 days matter because they set the tone for what follows. Stay human, stay fair, and keep learning as you go - that’s how you move from peer to boss without losing the respect that got you there.
➡️ Want practical support with this transition?
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