Well, the lone role requires two things; a striker who is suited to that position, ie. tall and strong in the air, but also service from the wingers. Shevchenko's positional sense is not suited for the lone role, and he often drops back in a second-striker-esque fashion, leaving the wingers isolated. He prefers to be in and around the box, which is where he is at his most leathal. It doesn't take a genius to work out Sheva is a class act and with the right combination up front, we could see 20 goals or more, from him next year.