Problem is Villa they got a good squad but not in central midfield and forward department.
I think we need to sort the midfield out and get rid (most not all) of Reo Coker, Petrov, Osbourne, Salifou, Sidwell, Gardner and bring in 4 players to play with Delph and upfront we need to get rid of Harewood, Heskey, and maybe Carew and bring in 3 strikers.
I don't know what happens to the game. But sound like bad change cost us the game with Heskey coming on for Delph.