TBH we've been showing we can challenge for the past two years, except for injuries which have derailed our seasons - the big question is, can we keep players like Sanchez, Ozil, Santi, Kos fit (especially as Sanchez won't have a rest this summer) and on form. If so then we can challenge, then if we buy one or two key players then we'll make a very strong challenge!
But this time I feel there is more belief and more depth in our squad. Ramsey has got better and we have a load of other player who can step in - Wilshere, OXO, Arteta and Rosicky.We have depth all round the park with the exeption of DM and CF. Can Walcott be that guy, our alternative CF? Also, a new goalkeeper would be good, not sure that Cheddars or Ospina are good enough for us.