Now that I think about it, Pekhart isn't that bad, he was bad yesterday but he did pretty decently in the other games. I see some things I like in him, mainly that he's a tall target man and is a pretty good ball distributer and ball control.
He can be useful in a game like this against a team that's going to defend for their lives. I'd still start him over Barbosa and Vargas in a position they really haven't played in at all, at least for a few more games. I could also see either of them starting over Diego, some tough decisions for Poyet to make.