Leadership Growth You Can Measure
Start developing leaders who can handle up to 80% of what currently lands on your desk
using Stake Holder Centred Coaching
You’re Stuck Solving Problems Your Leaders Should Be Handling
Are you stuck solving problems your leaders should be handling? When a leader isn't performing the way you need them to, the instinct is to assume they need more experience or better skills. But that's rarely the real problem.
The higher people rise, the more their issues stop being about capability and start being about behaviour. Specific habits they can't see in themselves — that are quietly derailing their effectiveness and business impact.
The result is a leadership layer that looks capable on paper but creates friction, loses the trust of high performers, and keeps escalating problems upward that should never reach your desk.
What if Your Leaders Could Handle 80% of What They Currently Escalate to You?
Using Marshall Goldsmith's Stakeholder-Centred Coaching System, we help your mid-level leaders transform the leadership behaviours that matter most to your business. Unlike traditional coaching that focuses on hours spent together, we are committed to one thing: measurable behavioural transformation that impacts your people and bottom line. And you only pay when your leaders actually improve.
FREE DIAGNOSTIC
Discover The Hidden Behaviours Holding Your Leaders Back
You can’t fix what you can’t see. Our free 5-minute Leadership Behaviour Scorecard identifies the hidden habits limiting your leaders’ impact - instantly revealing
Takes Less Than 5 Minutes
Instant Results
100% Free!
Meet Andrew Gemmell - Plinth Partners
Andrew Gemmell is a leadership behaviour specialist and certified Marshall Goldsmith Stakeholder-Centred Coach.
He works with CEOs and senior leaders who need their leadership teams to step up and specialises in identifying the specific behavioural habits stopping them from doing it.
Before becoming a coach, Andrew led a professional services firm of over 35 people. He knows firsthand what it feels like when your leadership layer isn't carrying the weight it should and what it costs a business when that problem goes unaddressed.
Unlike traditional coaches who measure success in sessions, Andrew measures it in behavioural change confirmed by the people who experience your leaders every day.
THE PLAN
How We Grow Your Leaders
We guide you through a clear, structured process that transforms both high potential and underperforming managers into the autonomous leaders you need.
Identify What's Broken
Through stakeholder interviews and our Leadership Growth Scorecard, we pinpoint the 1-2 crucial behaviours holding each leader back.
Coach for Change
We implement a 6-12 month system using stakeholders, weekly micro-coaching, and a monthly rhythm of action, and feedforward to drive sustainable change.
Pay Only on Results
We measure the leadership change that your stakeholders are experiencing. You only pay our success fee when your stakeholders agree that growth has occurred.
Getting Started Is Easy
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The Leadership Clarity Scan
Start Here: Every engagement begins with the Clarity Scan. Stop guessing what's holding your leaders back and find out from the people who work with them daily (includes full report, debrief, & action plan).
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Leadership Growth Coaching
Coach One Person: Transform one individual with a 12 month stakeholder-centered coaching program that takes the insights from the Clarity Scan and turns them into measurable, lasting behavioural change.
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The Scale Through Leaders Accelerator
Coach Your Team: Accelerate behaviour change across your leadership layer by coaching 3-5 leaders at once — multiplying the impact for you as a CEO and delivering faster, broader results across your business.
The Plinth Partners Results Guarantee
We understand the risk that comes with any leadership development investment. That's why we’ve removed it. While other coaches charge you regardless of outcomes, we don't get paid until your leaders' stakeholders confirm measurable improvement. No improvement. No fee. Because leadership transformation should be measured by impact, not hours.