Never mind that BFC's FB's were able to get forward more than anticipated, esp Henry (an absolute flyer) and also after Fulham went down to 10 men, that was a back four which Frank picked for that game.
Frank picks his formations/tactics according to the opposition: Against a top team which is flying etc, esp away from home, it's usually a back 5. But against an equal or lesser team he normally goes back 4.
Anyhow, Ben Mee may be fit for Saturday (C.Palace at home), so it will be interesting to see whether he comes back in, or is on the bench (don't want/need to rush him).