He'll be fine on the right against the Gunners - Arshavin has been terrible this season. Walcott is the danger man for me - he's about 3 yards faster than any player we own, and he had a nice easy 20 mins vs Blackpool to keep him sharp (which included an assist). Aurelio had better not get injured chasing him down, cos Wilson won't stand the same chance of keeping him quiet.
Also I would expect Nasri and Fabregas to be much more of a midfield threat than Yaya "Worst midfielder in the EPL" Toure and "Glad we didn't buy him" Barry. Kenny will need to change midfield tactics for this game, because we've dropped points in every game our midfield did not fire (and Lucas + Spearing/Poulsen played most, if not all of those). Meireles must surely return as part of a midfield 3, and leave Carroll up front by himself (possibly play a midfield diamond 4-3-1-2 with Carroll/Kuyt up top and Suarez as trequartista). It will limit our options somewhat, but I'd bank a draw at the Emirates at this stage (though wouldn't it be something if we beat everyone in the top 10 except Everton during Kenny's heavily injury-affected spell?)
Kenny could decide to damn the torpedoes and go full steam ahead like we did on Monday, given that the gunners are hardly assured at the back themselves. That opening salvo against City was breathtaking, but again, Nasri + Fabregas.... This should be the sternest tactical test for Kenny this season.