Purely thinking out out here.
Would we be more suited to having three wingers on the pitch? I can see where lukaku comes into it but if we don't pass to him then whats the point? Instead have 3 quickish wingers who all interchange at the front. If you sign the right ones you potentially have an unpredictable attack line which cannot be defended against.
For example, Mcgeady will run and run, Mirallas will try to take everyone on and Deufleu will try to score. As defenders, if you dont know which one you are up against then potentially it puts you on the back foot, which drags the team back making it difficult to counter afterwards.