So if they both have limitations, and neither one has lived up to their potential, then it comes down to one thing as the deciding factor.
Talent.
So why would we do something like that? And if not Lukaku, who on earth are we going to get? If Mandzukic is sold, and Kean is already gone, our forward line is frighteningly thin, when you consider that Costa and Cuadrado are consistently injured, and Bernardeschi (who SHOULD be sold before Dybala any day of the week) is maddeningly incosistent