I love Partey's skills on the ball but if this guy covers ground the way the stats suggest I could see him being a good fit for the way Ole seemed to want us to play in pre-season before he got scared and cautious, which was basically a 4-2-4 with the 2 responsible for covering huge swaths of territory. If we assume Pogba leaves, then having Fred, Zakaria (if he's the guy y'all say) and McTominay to give us 3 guys for those 2 spots and then a front 4 of Rashford, Bruno, a big signing (ideally Sancho) and one of Martial, Greenwood or James as the 4th guy with the other 2 coming in looks promising, if also needing a guy who can backup Bruno and also play in the 2 (ironically a motivated Pogba would be a top 3 player in all of world football for this role).
Writing that reminds me I'm still mad we let Juve get Vidal for 11M in 2010 after he was incredible at Leverkusen. He'd have been great in this setup.