Rooney hasnt got the legs to play further back centrally, he has been a liability there - he needs to be right bang in the middle behind a good (or two) strikers, unfortunately Sigurdsson will have to play there if we want to have width and a stable defence. Imo, its Rooney or Sig, not both for the tougher games - and I would have to go Sig, as he can track back a lot more.
Teams can have a free reign with Everton at the moment, they can push us back and put us under pressure (as we have no pacey outlet to punish them). They can sit back and hit us on the break, as all our centre backs, even Keane are slow, as wel as Schneiderlin and Davies being slow, and Sig and Rooney not the quickest. It doesnt help when most of our team cant pass, or play long balls up to their defenders. We need balls played into space for wingers to run onto and pull defences apart, we need support when Tosun wins the knock downs, or turns and looks for... nobody. We need to stop getting 2/3rds up the pitch, then passing back to mid, then to the keeper, then lumping it. Our coaching is shoite, actual tactics are shoite, and half of our players are actually shoite.
Adding Walcott is a small improvement, but an improvement nonetheless. Tosun looks already like he is going to be a hardworking handful, that we know can score. Lookman and Vlasic need to get a chance imo, and for them to do that, we need a proper central mid who does not give the ball away every 5 minutes - I would put n'Zonzi right at the top of the list once we have a proven left back.