How is it overkill? In 99 we had Yorke, Cole, Ole and Teddy for 2 positions, in 08/09 we had Berba, Rooney, Tevez and Saha for 2. How can you be alright with just Rashford and Zlatan as options, assuming Martial is sticking as a LM and Rooney is now a midfielder (not good enough anyway)?
Having Morata, Zlatan and Rashford as options up top would be immense. Throw Martial in there and we have 4 top striking options again. It doesn't matter that we only play one up top. Wilson and Keane aren't good enough, by the way.