You can’t go back and change the beginning, but you can start where you are and change the ending“.    CS Lewis.


I am a qualified and accredited coach with over 30 years of experience leading international teams across multiple functions.  I set up Schiltron Associates to help develop leaders and their teams through executive coaching and facilitation.

Our coaching and facilitation includes:

  • Personal transitions : defining the reason and nature of the change and then successfully implementing it.
  • Business transformation: addressing challenges within the organisation and building stronger teams.
  • Defining a strategy: creating and articulating a clear strategy for a function or a business.

If you are undergoing a business or personal change – and feel that coaching could help you understand and realise your objectives –  I can help you.

Contact me on to explore how coaching could help you or your business.    Or read on….

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“The best time to plant a tree is 20 years ago.  The next best time is today.”     Chinese Proverb.

Coaching for Personal Transitions.

Life is full of transitions – some arise gradually and some are forced on us by events. The transition may be driven by external events, by a new role or business opportunity or by the need to re-evaluate personal values and purpose.

Coaching can help you identify the nature of the transition, what you want out of it and the best way to achieve that objective.  Some examples of coaching topics and their underlying themes are shown below.

Transition capture

If you are facing some difficult choices or have taken on a new challenge, contact to discuss how I could help you.

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“When the winds of change blow, some people build walls – others build windmills.” Chinese Proverb.

Coaching for Organisational Transformation.

In business today,  constant change is a requirement for survival.  Successful change requires an understanding of the current situation, and alignment between and within the teams that will make it happen. The transformation of a business requires change in what a company does, change in how it delivers its proposition and most importantly, change within the people that make up the company.

Coaching  individuals managing this process, or coaching the teams themselves is key to succesful transformation.   By providing a safe space for the senior team to be able to reflect on their personal motivation and how this is realised, guided by respectfully challenging questions, each individual can develop a better understanding of who they are – and who they can be –  in the context of the transformed organisation.

Capture Transform 2

As an organisation undergoing a transformation, or as an individual who is driving change in their team, contact to discuss how I can work with you to create a tailored programme to help  all participants  realise their full potential.

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“Sound strategy starts with having the right goal.”   Michael Porter

Coaching for Strategy

Strategy coaching uses coaching questions and techniques to help refine and challenge your current understanding of  your business or start up strategy.

In many cases, the focus has been on the “what” or the “how”.   What is often more important is to really understand the “why”.  By creating an environment where open, gently probing questions can be asked, I can help you explore the underlying assumptions and objectives of the strategy.


Capture Strategy

The details of  what will be required from the team, and what messaging is required to the market to change customers perceptions or existing models, can then be set out.

Coming up with a strategy is only the beginning.  Clearly understanding how it has been arrived at – and how to share it with the other stakeholders – is critical.  Contact to discuss  how I could help with your strategy.

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Coaching is a managed conversation in which a safe space is created to enable a free-flowing exploration of the challenges and opportunities facing the person being coached. Good coaching helps you recognise who you are and what you could be – and what needs to happen to achieve this.

The coach is not there to provide answers. The coach’s role is to listen, to guide the conversation and to explore responses to a series of open questions. Coaching enables learning and personal development, by drawing on the experience and skills of both you and the coach to better understand your underlying drivers and the options open to you –  and to create a plan to make the desired transformation a reality.

My clients have described my coaching as :

“… excellent sounding board for anyone seeking to locate the obvious amongst the distractions of their day to day.

“…..helps you define where you are going and what you need to get there without telling you what to do.”

……helped me bring clarity to my thoughts and feelings, allowing me to make some critical decisions with confidence.”

Engagement Model.

This can be very flexible to allow for your particular situation and your availability.   The normal process would be :

  • A free initial session to explore whether I could help, and whether we both feel that that we could work well together.  We would also discuss what some of your specific objectives would be from an engagement.
  • We agree a coaching engagement.  There are several options :
    • A number of sessions  –  typical sessions are 60 – 90 minutes and are available as a block of 6.
    • A period of time – this would typically be for a 6 month period and would include 1 or 2 sessions a month and all required pre-work, follow-ups and ad-hoc support.
    • A one-off session – perhaps a team facilitation session or a personal transition workshop
  • We agree any required pre-work such as 360 feedback, or meetings with key stakeholders.

Most sessions are held over video link – but we can also meet face to face, depending on location (and current Covid19 status..)

During the coaching,  we will work together to:

  • Establish some clear objectives – be they specific goals or broader themes.
  • Develop a deeper understanding of what is important to you and the underlying motivations and purposes.
  • Imagine some alternate futures and how you and others might perceive them.
  • Define some appropriate steps forward, and a method of assessing progress towards your objectives.

You can expect me to:

  • Be genuinely interested in you as a person and how you can develop.
  • Be non-judgemental at all times.
  • Listen intently to try to fully understand what you are communicating verbally, physically and emotionally.
  • Be committed to helping you get the best outcome.

I would expect you to:

  • Be open to me – and most importantly – to yourself.
  • Be prepared to consider many possibilities and options, not limited by today’s realities.
  • Be committed to helping yourself to get the best outcome.

Contact for an initial conversation around how we could work together.

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I’m Calum Byers.   I combine over 30 years of international business experience with expertise as an accredited coach and a deep interest in people  to help  my clients successfully develop their leadership skills and manage new personal or business challenges.

Calum 3

Corporate Career :  I trained as an engineer, and started my career with BT, where I set up and ran their operations in Australia.  Returning to the UK, I joined  Spider Systems (Scottish high-tech startup) where I ran the network management business.   Looking for a new challenge, I moved to  Nortel Networks,  where my  roles  included sales, product management, operations and strategy, leading the EMEA services business, and leading global sales operations.  I also managed the sale process for our GSM wireless business.  From there, I joined Aircom International  as the software GM and then Chief Operating Officer and UK MD. 

As well as being a director of various Nortel and Aircom entities, I have been on the board of an Israeli JV and a German SAAS business.

Own Business :   In 2014 I decided to set up on my own, and formed Schiltron Associates.   I soon realised that my real interest was in people and how to best support their personal and team development through coaching.  I completed a Professional Certificate and then an MSc in Coaching at Henley Business School and achieved ACC and then PCC accreditation by the International Coaching Federation(ICF) to ensure I had the theory and the practical skills.   

My focus now is on developing my coaching practice, through my work as an associate for several companies and with my direct clients.

Personal :     I am married with two adult children and have recently moved back to Edinburgh.  I love being outdoors – walking, cycling and climbing Scottish mountains. I also enjoy crosswords and music – and am learning to play the tenor saxaphone and the electric guitar.


  • Henley  Business School:   MSc in Coaching and Behavioural Change
  • Henley Business School:    Professional Certificate in Coaching
  • Cranfield University:         GM Programme
  • City University:                   MBA in International Business
  • Heriot-Watt University :    BSc Hons in Electrical Engineering

Coaching Accreditations:

  • ICF  –  Associate Certified Coach (ACC)
  • ICF  –  Professional Certified Coach (PCC)  
  • PROPHET  – Psychometric profiling for executive teams.

Coaching Clients :

My coaching clients cover a wide range of sectors, business sizes and personal roles.   My larger clients have included:

  • Babcock International
  • Financial Conduct Authority
  • Spotify
  • Starbucks
  • Intellectual Property Office
  • BUPA
  • Times Educational Supplement
  • Thomson-Reuters
  • Morgan Stanley
  • Fidelity Investments
  • SEI
  • Royal Bank of Scotland
  • UBS
  • Wandle Housing Association
  • Vodafone
  • Bank of America
  • Marks & Spencer
  • HSBC
  • Angel Trains

I have also coached founders of start-ups including :

  • Zen Cargo
  • Zego
  • Eargym
  • Red Evolution
  • Cheerfy
  • GetaSnap

Some feedback from my clients is available here.

To discuss ways in which I could help you in your personal or corporate journey please contact me at