I love Giroud but I don't think he is the caliber of player that helps win a title. And I agree that a healthy team with Ozil, Walcott, Ramsey, and Wilshire make Arsenal a completely different team.
Forget Wilshire. He's fragile. Oxlade-Chamberline is the future (I know that sounds odd after his hand ball today) in the middle next to Ramsey. If anything Wilshire out left.