I don't think he's ever going to find enough consistency to play there - his areas of weakness are just too extreme.
That said, the same is true of Gervinho, so if we're already rolling the dice this season I don't see any harm in giving Theo a shot. He'll score a few goals, and spend a lot of time invisible and frustrating the fuck out of everyone.
Main concern, really, is that he won't be much of an 'out' ball when the defence is under pressure - he can't knock it down, hold it up, and he barely ever wins a header. That's not the be-all and end-all for a striker, but it'll give us problems from time to time.