I think we sometimes try and close opponents down when it would be better to sit a little. Fernandinho did it quite a lot yesterday and as a result, Villa's attackers got into some dangerous situations. Same with Otamendi in general.
I just think we either press as a team or we don't press as a team, but if we don't press, we can't try and play offside on the edge of the box.
Having Yaya in the team makes it absolutely impossible to press as a team, he's not physically or mentally capable. Hence why we get systematically beaten by every half decent team who is prepared to have a go at us. We're simply to easy to play against with him in a two.
The options are either drop the pressing style, which then means your opponents are allowed to dominate possession if they want or play Yaya in a three, which then means you have to drop Silva or play him out of position wide left. Both stupid ideas fundamentally.