The same happens to me. I think it has to do with changes they are doing with friends. Have a look at Leo release note in the official thread. The point is that this season a lot of managers of different servers are bidding for the same set of players, so between 15/20 managers are bidding for the best players, and 4/5 are bidding for oldies, normal players. Reading the forum, this is not happening in all servers, I hope they fix it soon, otherwise I will quit, because one of the things I like most of this game is the creation of a competitive team every season, and now it is impossible.