There is more to clubhouse culture than just "getting along," or "liking each other." A good clubhouse also means a culture that expects effort and success on the field. Sometimes that means calling out players how aren't putting in the required effort. That can be done in a hostile or a friendly manner. Even a good clubhouse can have rivalries, as long as they are respectful and focused on winning.
In the olden days, we heard about "Kangaroo Courts" and fines as a friendly reminder that maximum effort is expected. I wonder if they still have something like that.