Im in my second season with AC Milan, and the winter transfer window just closed. I signed David Astori to add depth to my backline, and mattia perin as a backup to Abbiati. After signing these players, my team has not won a game all month, and has dropped to third in the league after being in first. Existing players are complaining of a "lack of harmony". Did signing these two players cause this to happen? how do i fix this?