Imo, there should be minimum a player in all the lines: 1 CB, 1 DM, 1 CAM and 1 ST.
I wouldn't move Duccio's friend upfront since no matter where he's playing, ends upfront, yesterday he kept 'stealing' my spaces, so, I don't mind if he stays there and I move to another position.
We still could rotate positions each couple of matches.
If someone needs to be added to the club, send the friend request in PSN and we'll do it.