I know I've said it before, but seeing as we're talking about Alberto...
I reckon, give him a go in midfield, a la Mascherano. His passing and control in tight spaces looks pretty good, and who knows, the tightness of space in the middle might actually help his decision-making, as all 5-a-siders who get freaked out by a full-sized pitch will know!
Most of all, we could certainly benefit from his recovery challenges on players who get in behind us - which is undoubtedly the most outstanding feature of his game, in my opinion.