Him and Auba were the only two decent players for Arsenal (Auba with his runs). It's just more to do with the rest of their team not showing up and their manager not really having a clue. But tbf, until Mustafi decided to let Aguero have a free goal, Arsenal weren't looking too bad. But it is the same old under Wenger and I'd be very surprised if they managed to pull of a Europa cup win this season.
With Wilshere I'd like to see him play for England, but not really sure where or how. In a midfield two they'd get overrun, maybe a 3 with Henderson and someone else, with Alli, Kane and Sterling up front and Walker / Rose supporting from full back. The major problem with England really is that we never have a settled team, last Euros we had one team that played for most of the qaulifiers and then after a few friendlies decided to essentially play the half the Spurs team at the actual competition.