Fabergas seems to have disrupted the shape somewhat, was much further forward than messi most the time, and as good as Messi is passing it about midfield, know which one I'd want in front of goal.
Wingers did nothing either, far too easy to defend, far too unwilling to get shots, slowed it down too much, but nervous of Chelsea on the counter so didn't risk too much.
Doubt they'll be so nervous at Camp Nou, but not sure about the team shape at all.