he already accepted such role when he arrived here, and thats in a year where he needs to be at his absolute best if he wants to be on the Italy squad. i dont see the problem really.
he is 4th choice yes, but we play with 2 strikers and with injuries/suspensions/bad form everyone will get to play quite a lot. and no, the price is not too much. especially not when you consider the previous seasons payments which makes it a bargain deal really.
also ask yourself this. why the hell would Sassuolo give us 7.5M for him the previous summer? he would have stayed with them anyway and we could just buy their half this summer, so from Sassuolos perspective, how much sense does it make to purchase his half from us? and why would we even sell his other half if we had plans for him (read what Marotta, Nedved and co. were saying about him during last 2 seasons)?