We were poor with losing the ball in general when attacking, tevez and pogba being the biggest culprits.
Barca's defense worries me more than their attack. We've faced tough attacking sides in bvb and Madrid, but Monaco were the only solid defense we've faced, and that ended only 1-0 over two legs. Barca won't even give us a quarter the time Monaco allowed, and their defense will be 10x more solid against our counters than the disorganized bvb and Madrid defences. I think if there's anyway we're going through, its 0-0 on penalties, or a lucky 1-0. I can't see us scoring 2 for a 2-1.
That's my view of it, but this game will be very interesting. If we win, I'll have to watch it again for the tactics. If we lose, well, just burn the cable box