I doubt you’re doing anything wrong – your coach is more than likely just trying to figure out who works best where. Are other people being moved around as well? I would talk to him/her and say that you were curious why you were being moved around so much. I’m sure they’ll tell you what their reasoning is.

I know when I’m coaching and moving people from seat to seat, I’m just trying to determine who works best as a pair and who works well in different parts of the boat. Each seat has it’s own role and some people work well in one spot but not in another.

I would ask and say just that you feel like the inconsistency in seating is affecting your ability to gel with the boat, so you’re wondering a) why you’re being moved so much and b) what is your coach looking for you to improve on. Maybe your timing is a little inconsistent, which is why he moved you from stroke to bow – he wanted you to work on following other people and controlling your slide. I think as long as you aren’t accusatory when you ask, your coach will be receptive to talking to you about why he’s making these changes.