Bike teams wonderful, but they just aren't for everyone. There really are people out there who do better on their own, and not every team is for every rider.
Which is why you should choose your teams wisely.
Its also why when you are on a team you should ride with the team as much as possible. There really is something to bonding by shared experiences. Sometimes its those awful, cold winter rides that make a team stronger not because you were riding, but because you were experiencing those awful, cold rides together and thus have a shared perspective when the going gets tough. I'm not sure what it is about communal suffering, but it really does work.
So in this season of change, remember to love your former team mates. And ride like heck with the new ones.