Not everything is because of tactics and formation - they are internationals and have been making consistent errors all season.
True. If Schneiderlin didn't cost £24m he wouldn't get near the first team at the minute. He has shown no energy, no fight, no inclination to do anything other than the bare minimum, which he has done poorly. Shame as he can look like a rolls royce of a player when things are going well, but he looks a bit mentally weak to me, not the type you want when you're up against it.