Perhaps Ten Hag realized his mistake. However, ten Hag could not find a suitable replacement for Hojlund. I think Hojlund's return to the squad will bring more stability to Manchester United's performance.
Sothampton is not a strong team. Currently, Southampton is in the relegation zone. I feel confident Man United will win and it happened. This condition does not describe Man United has improved. But the 3 points obtained made Man United move up the rankings.
I think Onana was the hero in this match. Onana was able to thwart Cameron Archer's penalty. It makes the mentality of the United players better. Furthermore, there is a gap of about 10 days, they will compete in the Europa League. They will fight Twente.