Problem is we are not in a Dissimilar position to Utd the difference is they have made two signings for their first team. There is talk of them doing 2/3 more this window. The fact is we would have probably finished behind them last season if they did not have to play Johnny Evans at CB for 10-15 games.
See this is my problem with how we view things, you say that we would have finished behind them had they have not played Evans at CB but you ignore the problems we had when we had to play Emerson and Davies at CB for example, why is it we were lucky because of what they couldn't do and people don't can't the same energy when it comes to us?
And also focusing on speculation saying that there is talk of them doing this and that, there's talk of us signing certain players so why isn't' this factored into your thinking?
This is classic negativity bias

Buy anyway to answer your question, they needed a CB, they got one albeit he's 18 and untested, did they need a ST though, not sure and that move doesn't really move me, they also were after a LB to replace Shaw and Malacia haven't got one yet, a RW, haven't got one and a 6 to replace Casemiro and they still haven't bought one in so who's actually moved the needle for them?
Woolwich still need a ST
Liverpool need a backup CB and a 6
Newcastle (who people keep ignoring) still need a RW and a LB
Why is it only us that are in desperate need to sign players as if our rivals don't need to strengthen their squads as well?