I am finding that a career as a technical/scientific specialist can be rewarding, but I find myself pigeonholed in terms of moving out of being the "technical experts". Many other people depend on me to be effective and complete their jobs, especially commercial staff, but I am being kept at a "technical advisor" level. I want to move into management.
My understanding is that generalists are better suited to lead a company, as they can connect with different areas and be proficient at communicating and organising different aspects of a company's activities.
So, the question is: how does the transition between technical specialist and (senior manager) generalist happen? How does one escape pigeonholing?
Note: for answers like "ask for projects beyond your R&R", this is out of the question. And even if I got one, I would not get credit for the results.