I might be willing to go along with on that...BUT, if my coach ever said to me "this is what I do" and left it at that, I would be looking for another coach anyway. What he "does" has absolutely nothing to do with my game. In the case of adjustments, the coach should merely give examples of adjustments, when they work, why they work, and suggest what might work best for the student's game.
While I sometimes am in a situation of bowling when a previous coach is around, I understand the "feeling" of needing to go back to what he teaches, but I learned the hard way, it doesn't pay off. Now, if he (or anyone else for that matter) tells me something contradictory to my current coach, I just say...I will think about that some time off the lanes, but now, I just want to concentrate on xyz" (posting shot, balance, foot speed, or something not related to their comment). Enough said.
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