Why?
I just hate looking at the table and it not being the real table, because some teams have games in hand so you might be 3 points above rel but not really, because WBA have a game in hand against City who are still in the cup, and shit like that.
It doesn't need to be midweek actually, you can put PL games in there instead and play the cup on the weekend. Just don't mix the two the same day.