Dr. Lesley Trenner | Managing Change

Meet Lesley

Lesley is a highly qualified Executive Coach with over 15 years experience of coaching people through organisational, career and personal changes. Lesley worked for the multi-national pharmaceutical GlaxoSmithKline (GSK) for 20 years where she held increasingly senior roles in Change Management, Corporate Communication, Leadership Development and Executive Coaching.

Lesley specialises in helping senior people increase their leadership, stakeholder management and communication skills. She is particularly skillful at helping leaders navigate transitions, overcome personal and family challenges and build inner confidence. Clients who work with her achieve tangible results such as an authentic leadership style, better work life balance or a defined career path.

"Lesley has a brilliant ability to support and guide individuals through a process of change"

As a coach, Lesley uses proven techniques together with empathy, humour and the ability to
‘tell it like it is’. She works equally well with clients who want to focus on hard business objectives and those who need to ‘go deeper’. She has ‘lived experience’ of many of the areas in which she specialises.

Lesley is an ICF PCC accredited coach with over 800 coaching hours. She has worked with over 130 clients ranging from Vice Presidents to graduate trainees. She has wide experience in many sectors, including Pharmaceuticals, IT, the Civil Service and academia. Lesley regularly attends continuing professional development events and provides mentor coaching to colleagues.

Areas of Expertise

  • Personal and professional development

  • Clear, impactful communication, presentation skills, stakeholder engagement

  • Confidence, self belief, self promotion – especially for women

  • Leadership, delegation, decision making, change management – strategy through to implementation

  • Outplacement, reinventing yourself, elevator pitches, stand-out CVs

  • Resilience, handling transitions, well-being, work life balance, combining a senior role with childcare or eldercare

  • ‘Mid-life’ coaching, harnessing the expertise of older workers


Training, Qualifications and Publications

  • ICF accredited coach (PCC)

  • Professional skills in Coaching (ICF accredited)

  • GSK (GlaxoSmithKline) executive coach training programme (ICF accredited)

  • Mindfulness for coaches (Michael Chaskalson)

  • Author - Business Coaching for Information Professionals: Why it provides such good Value for Money in today’s Economic Climate (Business Information Review, March 2013)

  • PhD - Criteria for User-Friendliness (how computers should communicate with human beings)


What clients have said about working with Lesley:

  • “Sessions with Lesley led to a change in my thinking and priorities, a new calmness and confidence and much reduced stress at work” (Senior HR Manager, The Netherlands)

  • “Lesley – you helped me shape a new stage in my career. The coaching resulted in a significant shift in my development and stretched my confidence in moving into a new role with higher responsibilities and challenges. Your help has been pivotal for me” (Legal professional, Sydney)

  • “Lesley’s passion for managing change shines through in everything she does” (Pharmaceutical SVP, Philadelphia)

  • “With Lesley, we got straight to the core of the issues. My soft skills clearly improved and I have made changes in my behaviour, leading to much improved feedback from my manager and colleagues” (Regulatory Affairs Director, London)

  • “Thank you so much for your very valuable help with my CV. You did a fabulous job in really understanding my skills and career aspirations. It’s so much sleeker now and really shows off my strengths and what I have to offer. I am happy to say the improved CV has just landed me a new contract!” (HR consultant, London)

  • “Lesley’s excellent listening skills, caring and thoughtful approach helped me enormously in starting up a small business venture as well as constructively approach a challenging large-scale project whilst also working out how to preserve my work/life balance” (Company Director, Hertfordshire)

  • “Lesley’s incisive and thought provoking questions challenged my way of thinking and enabled me to think through situations for myself. As a direct result, I have improved the way I relate to others and increased my leadership and assertiveness skills. I’ve also felt wonderfully reassured, motivated and safe during our coaching sessions. I highly recommend Lesley to anyone looking to maximise their personal and professional potential” (Management trainee, London)

  • “I compare Lesley’s approach to the martial art Aikido: negative energy is re-orientated in a positive way.” (Senior scientist, Brussels)

  • “Lesley is a practical and delivery focused. She creates a supportive yet challenging environment in which to explore and discuss options. She is able to ask the seemingly-obvious questions as well as the more difficult ones and gently draws attention to the ‘elephant in the room’. Her professional, personable approach helped me identify clear objectives for personal development and to draw up action plans that ensured success”. (Senior Project Manager, London)

  • “Lesley challenged me to be more bold and strategic in my new job and often guided me down unexplored paths which made me think more about how to raise my profile whilst remaining true to my own values, resulting in promotion to the next level” (Process Improvement Analyst, London)


To arrange a free initial consultation with Lesley call 07711 503382 or email enquiries@managingchange.org.uk