I think we saw the capability of Ten Hag's team, post world cup. Where they went on that mad run. Still alive in 4 competition by mid April. But we also saw the lack of depth in the squad. Playing Erikson in the FA cup at home against Reading, where he was assaulted by Andy Carrol, and missed the rest of the season. Erikson should not have been playing in that game. Nor should Casemiro or Rashford. But he didn't trust the bench. So he ran his first 11 into the ground, and after knocking Barcelona out of the Uefa cup and winning the league cup, the team ran out of steam. The team tailed off at the business end of the season. And limped over the line in 3rd.
If this summers transfer window goes as follows.
Mason Mount
Andre Onana
Rasmus Hojlund
Sofyan Amrabat
I think that some of the lack of squad depth is addressed. Mason Mount starts and adds energy with pressing, which leaves Erikson as a back up option for Mount or Bruno. Amrabat can be rotated with Casemiro.
Kobbie Mainoo will also be introduced this season. He is similar to Bellingham in that he likes to control the game and drive forward.
Hojlund as main striker with Martial on the bench.
Antony, Sancho and Amad as options on the right
Rashford and Garnacho as options on the left.
Back 4 is decent, with 2 options in each position. Shaw (Malacia) Martinez (Shaw) Varane (Lindelof) Dalot (Wan Bisakka)
A new goalie who is confident and can play out from the back, and play as sweeper.
We will see how it all pans out.