needing a rebuild in the current market (unless you're City) is pretty much an impossible job to do, especially considering the quality they'd need. when SAF left they should of gone straight for a top manager, the job was attractive back then but now its a poisoned chalice..
looking at their squad; DDG, Smalling, Pogba, Martial, Perriera and Rashford are the only players i'd keep, possibly Herrera also. Fellaini, Jones, Matic (now), Lukaku, Bailey, and Lingard are midtable players at best. then you have Young, Valencia.. and Sanchez who should probably just retire, he really is Rooney 2.0. Mourinho is a bastard and his tactics don't have a place in todays football but their team is midtable going on the majority of the player quality, expecting a league title or top 2 finish is ridiculous when you see Liverpool and City
i think the only way for them to bounce back in the next 3-4 years is to sell their soul to the Saudi's/become an oil club. I got alot of respect for United and they always did things the right way building players up into future stars but football has changed
i was watching the game today and they can barely string 2 passes together, its pretty shocking.