Ozil would have been pretty useless in that kinda system tbh, the problem was balance between defence and midfield. The whole pass to Evra, cross into the centre thing needs sorting out, and Utd could have certainly looked at a scoreline something like 4-3 if either side had a bit more luck. Still, a win is what was needed, away at a side bottom of the league with a change of manager, and whilst unconvincing against that qualify of opponent, three points and another week to train his team better seems more useful to Utd right now.