Withe the 5 subs now it will almost be like preseason so teams with nothing to play for like Liverpool will act like preseason , start game with one team then sub half off in 2nd half , so then you get situation where fh you get the first team 2nd half the kids..
I've read Italy might have a transfer window as clubs need to sort out accounts for the year in June so need a window to sell to balance books.