MARTIN KEOWN: Arsenal MUST return to five at the back to get through these stormy weathers... Mikel Arteta's long-term plan is to play 4-2-1-3 but for that to work he needs two world-class central midfielders

Mikel Arteta's long-term vision is clashing with Arsenal's current predicament.

It is something of an understatement to say his attempt to switch to a back four has not worked. The last four Premier League results playing that way are: lost three, drawn one. It is relegation form and Arsenal are in crisis.

Going into the Aston Villa game last month, Arsenal had the best defensive record and had just won at Old Trafford for the first time in the league since 2006. All with the back five with which they won the FA Cup and Community Shield.