Our finishing was shit yesterday. Also games at the start of the season saw us capitulate in the second half and hobble away with draws (Wolves/Southampton).
Besides all the arguments re: counter attacking/game raising etc - which may very well be true - the ultimate reason why we're not doing well is the fact that we're relying on an incredibly thin squad filled with two extremes: older, knackered players and ridiculously young, unexperienced, talent.
Somewhere within Manchester United is a formidable football team, dominating possession and getting into the box. However, it's going to require smart signings that lift the team and see us actually convert chances. Goes without saying, but Liverpool are prime examples in recent years. (Fully aware that there is very likely a correlation between smart signings and smart leadership, which is something United are severely lacking).