We really shouldn't be pinning this just on Wenger either - how many national managers have played him in a similar position (in Capello's case even deeper)? It can't be coincidence that they all arrive at a similar decision on where he should be played. He can say he has 'learnt his trade' there but to me, that's just code for my heart isn't in playing there anymore.
Gervinho this season is the benchmark for Theo, not neccesarily in finishing, I mean I think two of them haven't landed yet but in terms of making the given role work. There hasn't been too many times I can remember Theo has been in the position for a tap-in, like Gervinho has this season. We're not playing with conventional strikers, we haven't for a very long time - even Giroud still pulls left like every 'big man' we've had up front for time immemorial.