one of the things i liked about Microsoft is that you can move teams (pretty) easily. i myself have had different experiences/practices in both the teams i was a part of.
I didn't think having to maneuver around passive aggression and outright blocking by current management, or having to pass full interview loops for each new position, were particularly fluid. Perhaps in a culture of hyper-competitiveness, some find those circumstances exciting. I found them good reasons to leave the company.