The leadership skills every new manager should prioritise in their first 90 days are communication, relationship-building, active listening, and the ability to set clear expectations. These foundational capabilities determine how quickly a new manager earns trust, establishes credibility, and creates the conditions for their team to perform. The questions below unpack exactly how to apply these skills from day one.
Which leadership skills have the biggest impact in the first 90 days?
The skills with the greatest impact in a new manager’s first 90 days are clear communication, expectation-setting, emotional intelligence, and the ability to listen before acting. These are not abstract qualities — they are practical behaviours that shape how a team responds to new leadership from the very first interaction.
New managers often make the mistake of trying to demonstrate authority through action. In reality, the most effective early move is observation. Understanding the team’s existing dynamics, strengths, and pressure points before making changes builds the credibility needed to lead well. Alongside this, new managers should focus on:
- Communication clarity: Setting out how the team will work together, how decisions will be made, and how performance will be measured.
- Emotional intelligence: Recognising the emotional landscape of the team, especially if the transition involved a previous manager leaving or internal promotions creating tension.
- Psychological safety: Creating an environment where team members feel safe raising concerns, asking questions, and admitting mistakes without fear of blame.
- Self-awareness: Understanding your personal leadership style and how it lands with different individuals, particularly across multi-generational or diverse teams.
Manager mental health also deserves attention here. The pressure of a new role, combined with the responsibility of supporting a team, can be significant. New managers who develop self-awareness early are better equipped to manage their own wellbeing alongside their professional responsibilities.
How quickly should a new manager build relationships with their team?
A new manager should begin building relationships with their team from day one, but the priority in the first two weeks is listening rather than leading. Relationship-building is not a phase that follows orientation — it runs concurrently with every other task a new manager undertakes.
One-to-one conversations in the first week are one of the most effective tools available. These meetings should not be performance reviews in disguise. Their purpose is to understand what each team member values about their work, what frustrations they carry, and what support they need. This signals respect and creates early psychological safety.
By the end of the first month, a new manager should have a working understanding of each team member’s motivations, communication preferences, and current workload. By the 90-day mark, those relationships should be strong enough to support honest, two-way feedback. Rushing this process by asserting authority before trust is established is one of the most common reasons new managers struggle to retain team engagement.
What’s the difference between managing and leading a team?
Managing focuses on tasks, processes, and outputs — ensuring work gets done correctly and on time. Leading focuses on people, direction, and culture — inspiring individuals to perform at their best and align with a shared purpose. Both are necessary, but new managers often default to managing when their team most needs them to lead.
In practical terms, managing involves setting deadlines, tracking progress, allocating resources, and resolving operational problems. Leading involves articulating a vision, building trust, developing individual potential, and making decisions that reflect the team’s values and long-term goals.
The distinction matters because teams can function under management alone in the short term, but they disengage without leadership. A manager who only manages creates dependency. A manager who leads builds capability and ownership. In the first 90 days, the balance should lean toward leadership — understanding people, setting direction, and modelling the behaviours expected of the team. The operational management layer will follow naturally once that foundation is in place.
How should a new manager handle underperformance early on?
A new manager should address underperformance early, directly, and with curiosity rather than judgement. Ignoring it in the hope that things will improve on their own is one of the costliest mistakes a new manager can make — it signals to the wider team that low standards are acceptable and erodes trust quickly.
Before raising underperformance as a formal issue, a new manager should first seek to understand its root cause. Underperformance is rarely straightforward. It can stem from unclear expectations, personal circumstances, lack of skills, insufficient support, or deeper issues around manager mental health and workplace stress. A private, honest conversation focused on understanding rather than blame is almost always the right first step.
When addressing underperformance, new managers should:
- Describe the specific behaviour or output that is falling short, not the person’s character or attitude.
- Ask open questions to understand what is driving the gap.
- Agree on clear, measurable expectations going forward.
- Offer support — whether that is additional training, an adjusted workload, or regular check-ins.
- Document the conversation and any agreed actions.
Handling underperformance well in the first 90 days establishes a manager as fair, consistent, and courageous — qualities that define effective long-term leadership.
Should new managers seek formal leadership training in their first 90 days?
Yes — new managers benefit significantly from formal line manager training in their first 90 days. The transition from individual contributor to manager is one of the most challenging professional shifts a person makes, and the skills required are rarely developed through experience alone. Structured training accelerates that development and reduces the risk of costly early mistakes.
Formal manager training provides a framework for the challenges that feel most uncertain in a new role: how to give feedback, how to navigate difficult conversations, how to support team members experiencing mental health difficulties, and how to lead inclusively across diverse teams. Without this framework, new managers often default to the management styles they have observed — which may not reflect best practice.
Mental health training is particularly relevant here. Managers are frequently the first point of contact when a team member is struggling, yet many have no formal preparation for that responsibility. mental health training equips managers with the language, confidence, and tools to have these conversations effectively — protecting both the employee and the manager’s own wellbeing.
Investing in manager training early also signals to the individual that the organisation is committed to their development, which improves retention and performance at the leadership level.
How Wellity Global supports new managers through leadership development
Wellity Global’s leadership training programmes are specifically designed to equip new and experienced managers with the skills that matter most — from psychological safety and mental health awareness to high-performance leadership and inclusive management. Key features include:
- Over 450 training titles spanning leadership, mental health, resilience, and ED&I.
- Programmes such as Live Well, Lead Well and the B.O.I.L.I.N.G. Point Leadership Programme, tailored to real-world management challenges.
- Delivery options including on-site, virtual, and blended formats to suit any organisation.
- Pre- and post-learning collateral with outcome evaluation to measure impact.
- Accredited by the IIRSM, with a proven typical ROI of 9:1.
Whether you are onboarding a cohort of new managers or developing leadership capability across the organisation, Wellity Global provides the expertise and structure to make that investment count. Get in touch with our team to explore the right programme for your organisation.
