De Laurentis is in tricky situation.
His three stars hold a very high price tag at the moment, which will likely not be the case next summer. He's getting CL money anyway, with or without them, so he might as well sell now when he can get more money.
On the other side, by keeping them and playing CL with them, his team might make the knock-outs and they might shine at the big stage. In that case he gets both CL money, success AND his three stars will cost at least the same, if not more.
If they fail in CL their prices might drastically fall though.
He does have some thinking to do and decide how to act this summer.