The more heads in, the better. United is one of the biggest sporting entities in the world. It requires lots of delegation.
You can have Jewell be the recruitment man, Wilcox the development man and Ashworth the man who stitches it all together, with Berrada being the money man.
The first team head coach is then freed from the burden of having to be part of the recruitment man and part of the man who stitches it all together, and he can focus on first team performances and is assisted by those four gentlemen.