The thing is though it ISN'T the same team. Since Christmas we scored the most points of any team in the pl, since Christmas we have signed Gabriel, seen the emergence of coq (which, whilst I know everyone hates the saying, IS like a new signing) and signed Cech. That's 3 players in the spine of the team. That isn't too say we shouldn't be signing anyone, but when we have Welbeck, giroud, walcott, campbell, sanchez, chambo for the front 3, and coq arteta and flam for cdm, whilst 2 of those in each category are poverty, I can see why we aren't atm.
That being said I still think we're in for a striker, but when there are only a handful who would be ideal and all are on long contracts at better, bigger teams transfer negotiations aren't going to be quick are they.