Actually, a player of Bissouma's profile is something that we need. We need a player who is also good at doing the dirty work, which most of our players can't do. Granted, he has been slowly moulded into more of a box-to-box player, but he is still excellent defensively. We probably didn't go near that deal because of the ongoing case, but we do need that profile of a player. FdJ is not the player you would play in a lone pivot.
A CB, RB, CM and a versatile forward become an absolute necessity. And then, maybe in the next window, a striker and a better GK, but that's far off thought.