Valencia and Young are more than capable of holding their own in many games. Very capable of looking good, in fact. Capable of having a good run of form. But the fact remains neither are specialists in those roles and at times it really does show. They've both ended up there by accident. Two players aged 32 who are performing a role that was alien to them for much of, if not all, of their 20s. That isn't to say they're not capable of performing there, but it's odd how we've settled with two make-shift, late comers to the full back role for both positions. At times I think it really does leave us exposed as neither are naturals in their positions. Neither are 'expert' full-backs. When against a higher calibre of opposition where the role requires more than strolling forward and waiting for the chance to cross, I think they really can look exposed, particularly Young.