How to Influence Strategies for Cross-Functional Teams

In today’s organisations, leadership isn’t defined by hierarchy; it’s defined by influence.

Whether you’re managing a project across departments, driving change initiatives, or collaborating in matrix structures, success increasingly depends on your ability to lead without authority.

But leading peers or stakeholders who don’t report to you can be one of the toughest leadership challenges. Without positional power, how do you motivate, align, and deliver results?

As a leadership coach, I’ve seen that the most successful cross-functional leaders don’t rely on authority; they build trust, clarity, and credibility. Here’s how to master the art of influence when you don’t have formal control.

How to Influence Without Authority

Leading without formal power is one of the most valuable and underestimated leadership skills. In today’s matrixed, cross-functional environments, success often depends on your ability to inspire cooperation rather than enforce compliance.

True influence doesn’t come from title; it comes from clarity, trust, and connection. The three cornerstones of collaborative leadership. Here’s how to put them into practice.

1. Begin with Shared Purpose

When you can’t rely on hierarchy, alignment becomes your greatest source of momentum. Start every project by clarifying the why, the purpose that unites everyone involved.

That means:

  • Defining a shared vision of success, not just a list of tasks.
  • Clarifying how the work connects to wider organisational goals.
  • Making expectations explicit, who owns what, and how decisions will be made.

When people understand the purpose behind their work and how their contribution fits into the bigger picture, they don’t need authority to stay engaged; they commit.

2. Earn Trust Through Consistency and Competence

In the absence of formal power, people follow you because they choose to. That choice is built on trust, and trust is built through what you do, not what you say.

You build influence by:

  • Delivering on promises, even when circumstances shift.
  • Being transparent about challenges or trade-offs.
  • Demonstrating both technical competence and emotional intelligence.

Perhaps most importantly, you model calm confidence. In times of tension, people gravitate toward those who stay grounded and constructive. Your credibility becomes the anchor that keeps collaboration steady.

3. Lead Through Relationships, Not Roles

At the heart of influence is connection. When authority isn’t a lever you can pull, relationships are the bridge that make things happen.

Take time to:

  • Understand your stakeholders’ priorities and pressures.
  • Ask genuine questions, not just about the work, but about what motivates them.
  • Find opportunities for shared wins and mutual benefit.

Building relationships before you need them makes collaboration effortless when it counts. Influence, after all, is less about persuasion and more about partnership.

The Leadership Coach’s Role in Developing Influence

Leading without authority requires a subtle blend of self-awareness, emotional intelligence, and strategic communication, skills that can be developed and refined through coaching.

As an external coach, I work with leaders to strengthen their ability to influence without formal power by helping them:

  • Identify and build on their natural sources of influence.
  • Develop communication strategies that create alignment and trust.
  • Navigate conflict and politics constructively across teams.

Through coaching, leaders learn to adapt their style to different stakeholders and situations, turning uncertainty and complexity into collaboration and momentum.

Influence, after all, is not about position. It’s about purpose, presence, and the ability to bring others with you.

If you’re leading cross-functional teams or driving change without formal authority, coaching can help you develop the confidence, clarity, and communication skills to lead effectively.

Get in touch to explore a tailored coaching programme that supports you to lead with influence, not hierarchy.

FAQs

1. What’s the biggest challenge when leading without authority?
The greatest challenge is often alignment, bringing together people with different priorities, agendas, or reporting lines. Leaders who succeed focus on shared goals, clear communication, and relationship-building rather than trying to enforce control.

2. How can I build influence quickly in a new cross-functional team?
Start by listening. Spend time understanding each stakeholder’s needs and pressures before pushing your own agenda. Early empathy builds credibility and helps you identify where your goals overlap, creating natural alignment.

3. How can coaching help me strengthen my influencing skills?
Coaching provides a confidential space to build self-awareness and practise influence strategies. It helps you develop emotional intelligence, handle resistance effectively, and communicate with impact, all essential for leading in today’s collaborative, matrixed world.