Agree with
one4smoke . Don't expect Cav to be riding with DQT next year.
And maybe I'm reading too much into today's race, but I don't think it's a good idea to be putting either Cav or Sagan in a race with somebody like Bennett, at least when Bennett is as hot as he is this spring. When a guy is that "on", you want everybody in that train working for him, and I just can't see Cav or Sagan playing the leadout role.
If they sign Sagan, then it should be to sent him to the Giro while Bennett does the TdF, or similar.