People & Culture Advisory

Fractional, interim,
and project-based
People leadership.

I work with leadership teams and HR functions to redesign how work gets done, how organizations are structured, and how People/HR functions operate so they are fit for the realities of the AI era. I've shaped that work from the outside as a consultant, and led it from within as a senior People leader.

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Gareth Lewis, People and Culture Advisor

Strategy &
Execution.

I work across the full People and transformation agenda on a fractional, interim, or project-based engagement.

Fractional & Interim People Leadership

For organizations between permanent People leaders, navigating a critical transition, or needing senior People capability without a full-time hire, I provide embedded leadership at the level the moment requires.

  • Fractional advisory (1 to 2 days per week)
  • Interim executive leadership
  • Project-based transformation support

Experienced leadership, without the delay or cost of a full-time appointment.

Fractional CHROInterim leadershipAdvisory retainer
Change Execution & Coaching

Most transformations do not fail at the strategy stage. They fail in execution. I work at the point where design meets delivery.

  • One-to-one coaching for leaders navigating the personal and behavioral demands of leading change
  • Stakeholder alignment and governance clarity
  • Sequencing and pacing of change
  • Union and works council considerations
  • Leadership accountability and behavior

This is where change either lands or stalls.

Change leadershipExecutive coachingStakeholder alignment
AI Era Workforce Strategy & Organizational Design

AI is changing how work gets done faster than most organizations are changing how they are structured. I help leadership teams translate AI ambition into practical organizational decisions.

  • Redefining roles and capabilities
  • Rethinking spans, layers, and team structures
  • Clarifying where human judgment remains the differentiator
  • Sequencing change in a way the organization can actually absorb
Role redesignOrg structureWorkforce planningAI readiness
People Function Modernization & HR Strategy

Many HR functions were built for a different era of work. I work with Chief People Officers and HR leaders to assess whether the function is genuinely fit for what the business needs now, and to design and implement the changes required.

That might mean restructuring the HR operating model, sharpening the strategic HRBP function, redefining the center of excellence, or aligning People strategy to business direction.

The aim is a People function that is genuinely enabling the business, not reacting to it.

HR operating modelHRBP effectivenessPeople strategy
Today's problem

42% of Chief People and HR Officers are prioritizing AI investment. Only 5% say their teams are prepared to deliver it.

Korn Ferry, 2025

50 to 55% of US jobs will be reshaped by AI over the next two to three years.

BCG, 2026

Most organizations have adopted AI. Very few have redesigned the work to match. That gap is where I focus.

I work with organizations navigating genuine step change.

Organizations are gaining capacity faster than they can redirect it. Change is happening, but transformation is not. Closing that gap through organizational design, change execution, and a people-centric lens is the work I know best.

About
Gareth
Lewis
People & Culture Advisory

My experience is working with organizations at inflection points — a leadership transition, a restructure, a transformation that needs to stick, a People function that needs to catch up with the business.

These are the kinds of questions I am increasingly seeing emerge in conversations with leadership teams and HR functions. I work on a fractional and project basis and bring a combination of outside-in strategic perspective from management consultancy, and inside-out implementation from senior People and Culture leadership roles.

Examples of experience include leading People strategy through global digital transformation at Dow Jones and The Wall Street Journal; scaling and structuring a digital media business from early stage through rapid growth and acquisition at The News Movement; leading global People function transformation across a distributed workforce at Human Rights Watch; and advising multinational organizations on operating model and workforce strategy at PA Consulting.

Workforce strategy, organizational design, People function modernization, and the execution of transformation — this is where I focus.

Complex, ambiguous, and fast-moving environments are where I have spent most of my career. I bring calm and structure while navigating the stakeholders and dynamics that determine whether change actually sticks.

Organizations
at an inflection
point.

CEOs & Founders
Scaling through growth, transition, or transformation and looking for a People and Culture partner who can think and move at pace.
Chief People & HR Officers
Working to ensure the People function is genuinely keeping pace with what the business now needs — from operating model to HR strategy.
Executive & Leadership Teams
Navigating transformation or transition and needing structured, experienced external support.
Individual Leaders
Leaders navigating complexity, transition, or the personal pressures that come with operating at pace. One-to-one work focused on judgment, effectiveness, and what comes next.
Common inflection points
Operating model redesign requiring new structures, roles, and capabilities
Leadership transition creating a need for continuity and forward momentum
AI or digital transformation outpacing the organization's ability to adapt
Organizational complexity slowing decision-making and execution
How I work

Fractional,
interim, and
project-based.

Working independently means direct involvement without the cost structure of a large consultancy. Most work begins with a focused conversation to make sure we are solving the right problem before agreeing on scope and approach.

Fractional or Interim Leadership

Ongoing senior People leadership capacity, typically one to two days per week on a monthly retainer. For organizations navigating a transition or needing a senior strategic partner without a full-time hire.

One-to-One Leadership Coaching

A structured, confidential coaching relationship for executives and People leaders navigating complexity, burnout, or significant transition. Separate from consulting engagements and entirely discreet.

Diagnostic & Advisory Sprint

Short, focused work to clarify the problem and define direction. Useful when the challenge is not yet well-defined or when you need an independent external view before committing to a larger program.

Project-Based Transformation

Defined scope with clear outputs and implementation support. I stay involved through delivery, because that is where most transformations succeed or fail.

Let's talk

If this resonates, I would welcome a conversation.

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