Spot onCreativity of our midfield is pretty poor. IMO of the regular three (Song-Ramsey-Arteta) Song is probably our best playmaker and that's saying a lot about the other two given that he's supposed to be the defensive minded player. Thankfully our AMs (Gervinho/Walcott etc) create enough but as they can't finish we really need the midfield to step up.
Arteta was an okay signing, decent if he was brought in alongside a 'star' midfield man (to replace someone like Diaby/Rosicky) but poor given that he was brought in by himself to play in CM (don't really consider Benayoun a central midfielder). He keeps things steady but rarely will change a game and is as someone said effectively a glorified Denilson (albeit a lot more hardworking). We'll win nothing with Arteta in midfield.
Although I can't wait for Wilshere to come back I think he's been overhyped in the extreme since being injured, his general play was usually exceptional for us but end product was poor. Ultimately think we need a star man in midfield as well as up front, and a signing to tide us over while the defensive injuries heal.