I’m really happy Toby made it clear that you shouldn’t be the ultimate tester and constantly exploring new techniques, tools, etc … unless you want to be a great mentor. A tennis coach is not a better tennis player than his coachee.
I’m convinced that the world of coaching is another world. Helping a developer create something great by navigating him to the goal requires technical skills and techniques and great insight in how computers work. Helping a tester/developer achieve a personal goal (e.g overcome the fear to speak in public) requires a different set of skills and great insight in how the human mind works. For me becoming a coach, feels as if I’m going from controlling and steering logical things, such as computers and software, to a much bigger challenge in trying to do that with much less logical “things” such as people and their personal development. I still have lots of exploring to do in that world and this AMA boosted my enthusiasm.