Promoting a strong performer into management can feel like an obvious decision. They know the organization, understand the work and have earned their colleagues’ respect. But technical success does not automatically translate into an ability to coach others.
The transition requires a fundamental change of mindset: from delivering results personally to enabling other people to deliver them. Without proper preparation, new managers can fall into predictable coaching traps that affect performance, engagement and retention.
The warning signs are widespread. In 2024, The People Space reported that more than 60% of managers rated the training they received during their first year as poor, while 36% said they lacked the skills to thrive in today’s workplace. Its conclusion is stark: employers are too often “setting managers up to fail”.
Here are three avoidable mistakes, and how organizations can help new managers prevent making them.
A common mistake is treating promotion as proof that someone is ready for every aspect of management. The organization assesses what the candidate has already achieved but does not examine the experience they are missing. A brilliant salesperson, engineer or analyst may never have handled underperformance, adapted their communication for different personalities or helped someone find their own solution. If these gaps remain invisible, the new manager is expected to learn through trial and error, usually with a team bearing the consequences.
The solution begins before the appointment. Define the behavioral as well as technical demands of the role, assess candidates against them and make hiring/promotion decisions with a clear understanding of each person’s development needs. A gap is not necessarily a reason not to promote; it is a reason to prepare.
Once appointed, the manager needs a tailored development plan, supported by practice, feedback and regular check-ins. As Personnel Today notes, managers can have “a huge amount of positive impact” on employee development, particularly by providing precise feedback, creating the right environment for learning and seeking outside support when necessary. This means treating promotion as the beginning of a structured development journey rather than the end of the selection process.
McQuaig tools can add valuable depth to this process. The Self-Development Survey turns behavioral insight into personalised strengths, coaching tips and growth priorities. Later, the McQuaig 360 Leadership Review can gather perspectives from the manager’s leader, peers and direct reports, helping to expose blind spots and translate feedback into specific actions.
Download the Guide: The Managers' Coaching Cheat Sheet
New managers are often promoted because they are excellent problem-solvers. When an employee brings them a challenge, their instinct is therefore to provide the answer, rewrite the work or take the task back entirely. It may feel helpful, and it may produce a quick result. But repeated ‘rescuing’ creates dependency. Employees stop thinking for themselves, while the manager becomes an increasingly overloaded bottleneck.
Coaching requires the manager to resist being the expert in every conversation. That means listening carefully, asking questions and helping the employee develop their own route forward. Useful prompts include: “What have you tried?”, “What options do you see?” and “What support do you need from me?” Coaching is not about having all the answers: purposeful questions encourage “creative and solution-focused thinking”. Managers should listen, reflect and summarize before responding.
TeamSync helps a new manager understand the different working styles, motivations and communication preferences within the team. That insight enables them to adjust their questions and coaching approach rather than relying on the same technique with everyone. McQuaig Maven can then turn behavioral data into practical coaching questions and personalized suggestions when a manager needs guidance before a conversation.
Perhaps the most damaging mistake is delaying feedback because the manager fears conflict, wants to remain popular or does not know what to say. Avoidance rarely makes an issue disappear. It allows weak performance or damaging behavior to continue, frustrates other team members and makes the eventual conversation more serious. It is also unfair to the employee, who loses the opportunity to understand the problem and improve.
New managers need confidence to hold robust conversations early. That confidence comes from preparation: gathering specific examples, separating observable behavior from assumptions, explaining the impact and agreeing clear next steps. Role-play and rehearsal are especially useful. The aim is to be direct and respectful, not aggressive. Clarity and care are partners, not opposites.
Maven can help a manager prepare relevant questions and structure a conversation. TeamSync provides context about how the other person may prefer to communicate, while the Self-Development Survey can reveal whether the manager’s own natural style encourages excessive caution or bluntness. Over time, 360 feedback can show whether the manager is becoming clearer, more courageous and more effective as a coach.
Read more: Easy Coaching Wins For New Managers
Organizations should never assume that a promotion completes someone’s preparation. It begins it. When employers identify experience gaps, build coaching capability and equip managers for difficult conversations, they turn talented individuals into confident people leaders, and give their teams a much better chance of succeeding.
Ready to turn these insights into action? Join our upcoming webinar Are You Hiring the Best Interviewee – Or the Best Employee? to explore how McQuaig can help you identify development gaps, build coaching confidence and prepare new managers to lead more effectively from day one. Venessa Vasilakeris and Jo Emmerson explore how to look beyond resumes, first impressions and interview performance to make more structured, evidence-based hiring decisions.
Join us on Tuesday, August 25, 2026, at 2:00 p.m. BST / 10:00 a.m. ET. Register your place here.