We cant have both Haaland and Greenwood in the squad. They both need minutes at the stage of their careers, at #9, no place else, and with Martial as first choice we cant have two young talents held back behind him. One is fine, because he will get minutes as Greenwood is now.
We dont need another young #9 prospect though, we have that in Greenwood already. If you buy Haaland you give up on Greenwood or at least send him into loan obscurity. We have a 25 man squad more or less, there is not room for more than one or two young prospects in the same position. Its not possible.
Money need to be invested in midfield. A lot of it. Its where investment should be directed, we should stick with Greenwood as the prospect up front. I dont think Greenwood would be doing worse than Haaland at his current club btw. Haaland is not even a complete regular for Norways national team, which pretty much sucks as it stands now.
I like Haaland, put his profile is so far from what should be our priority: Midfield, midfield and another midfielder.