I didn't like the 2 detectives that are said to be leaving at the end of this last season. I do like Finn better now and I enjoy the rich guy and the African american woman. Rollins returning only fits because she is married to Carisi. I don't think Rollins was a stand out character otherwise. She does add to the chemistry of the team. The team as I have mentioned with Rollins included works better than the team they had put together this last season.