If we were buying Green as number 1 or 2 i'd agree, but the reality is while im don't rate him atall he's unlikely to play a single minute. Look at all the other top clubs 3rd choice keepers. Liverpool have/had Alex Manniger (a Gooner reject from the 90's), United have Lee Grant, City have Richard Wright i think, Spurs have Gazzaniga, not really the world of difference between any of them really, only Grant you could argue is close to PL quality.