I think both clubs are in disarray in their own ways. Both have great managers but not idea players. United have good players on paper but who seem to have really poor attitudes and undermine the manager eventually.
Chelsea have spent a lot of money but have a completely new squad who have had little time together and are very raw.
It’s easy to say “Chelsea should because they spent 1bn”. But I am talking about their current squads, manager, board, situation etc
The level of performance Utd have shown has been extremely poor. Digging out results but have been outplayed or had even matches in most of the games they have played this season. From what I have seen so far the squad looks unbalanced with no clear plan on how to dominate and control a match. Then you look at the squad with players like Eriksen, Casemiro, Varane who could need replacing soon. Players like Antony, Mount, Sancho who don’t fit. I think they have a lot more work to do than Chelsea.