How to add a player to replace him? My Club (Pro Evolution Soccer 2018)

Hi, friends!

Game mode Ma Club.

Stalled. Made unwanted players special coaches to pump the ACC. other players. Then tried to play a match, but got the message that the game is impossible until then, until I have enough spare players, etc.

Tried of remaining players to add to the reserve, but failed. Just not added those players that are in the commands list. Apparently you need specialized players to replace them, from which I happily escaped.

Plz tell me how now it is best to be? Who faced with and what is the solution the fastest and optimal?