I can’t speak for everyone, but where I am, BBs are selected on the basis of:- being well-regarded within the company, being able to think laterally/vertically/horizontally/5th dimensionally/out-of-the-box etc., able to lead groups, provide inspiration for others, be objective, non-critical, be future leaders, etc.
Current job function doesn’t come into it – it’s much more a case of identifying the required skills in the individual, and going from there. This doesn’t answer your question well, I know, but hope it helps anyway.
James A
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