It's going to be Compton surely. Maybe Bopara in at 5 and Bell goes up to 4. Maybe Lumb? Pietersen isn't showing much composure. He should be scoring heavily especially on this wicket against this team.
Having said that, there's no reason to change the starting line up I guess. Pietersen needs to regain test form, why not let him do it when the pressure's off.
Edit: oh yeah he's injured