3 man defense
Gibbs to act as withdrawn left winger
Melo and Cesc to hold the retain the ball, with Cesc playing a slightly advanced/link up role
Vermaelen/CB2 to act as sweeper depending upon opposition attack
This would be quite a tactical shift from our current line up. I doubt Arsene will even try.
Assuming he did, it probably won't be Walcott on the right flank. My observation is attacking full backs play in the midfield on the flanks in 3 men defense line ups. Think Roberto Carlos and Cafu. Walcott may be quick and nimble but he is no full back and don't seem to have the physical presence either.
