Will be interesting to see what happens with Rooney this season! I personally think that as the season progresses he'll end up being a bench warmer who comes on to bring that much needed experience.
Technically he's not good enough in the 10 role, he's not quick enough either in a Jose system.
But he's also not the best option up front either.
What this all means though is we have a lot of options in attack. Rooney can play the 10 role but he can also play up front if needed. Rashford can play up front or out wide. Ibra of course will play up front but may also fill the 10 role of that real invention is needed. Martial offers us options, even Memphis and Januzaj give us flexibility. And then of course mhkitrayan can play anywhere across the front 3.