Arteta is often criticised for playing two centre-backs at full-back, in Jurrien Timber and Riccardo Calafiori. Of course, they don't actually function as centre-backs: though both have played there for their respective countries, the pair have license to roam in the final third and contribute massively to Arsenal's attack. By fielding full-backs who are capable of playing centre-back, though, the Gunners not only have a defensive base strong enough to platform their attack, they have two players who can build up in a back three.