Does'nt seem to be developing does he ,whether that bad leg break affected him I don't know ,was watching it earlier .Arsenal seem slow and ponderous on the ball,they may be a soundly run club ,but are in dannger of slipping behind in terms of glory.I don't think i've ever seen their ball retention so poor.It would be interesting to see the books from when they were the "Invincibles" and the levels of debt accrued compared to success.
The leg break would of affected him so much. I snapped my Tibia & Fibula in a similar challenge last season. I've been quite fortunate as I've bounced back quite well but it affects your mind in everyway possible on the pitch.