What you've said contradicts itself all over the show. Evra is getting outnumbered and we've no width on the right, but no-one is taking up a position to play the short ball, no-one is packing the midfield and it's all about going out wide? That doesn't really add up. Mata has come in to play the short ball consistently, hence why there's no-one out wide. There's been some decent build-up play with him and Rooney dropping into the hole and outnumbering Gerrard, with their other two centre mids pulling out wide and Sterling not really contributing much off the ball. The fact Mata is coming inside and linking up with Rooney is evidence of it being a 4231 rather than this rigid 442 that everyone tries to convince themselves is being played when we're not winning. People criticise playing the 442, but then mention Mata never being in the wide position...something doesn't quite add up there.
I think we've played decently. The issue is there's not a lot of confidence in the squad and Liverpool are playing very well in general. The biggest tactical problem I see is we lack pace up top to stretch their defence and create space. Welbeck up top would give us that but then van Persie's had a couple of chances in the box and did nearly score and he has a good record against Liverpool so I can see why we've left him on.