You are right. Man United don't only have bad quality of attackers, they also have bad defenders. The number of conceded goals in this season describes how bad the quality of Man United defense. How can the conceded goals higher than the number of goals they made? This is a really big problem for Ten Hag, he didn't have enough good defenders. If Man United always have a problem on the defense line, they will never be a stronger team. If I were him, I will rebuild the defense line, I will change all the current defenders.
However, the attacking line is performing very badly. If we look at the stats, Man United only can score 52 goals so far. This is the lowest number of goals among the top teams in EPL. Even Aston Villa, Newcastle, and Chelsea can score more than 70 goals. I think the main problem of the attacking of Man United is about the striker (CF). Hojlund still can't play as a real machine goal, his stats of scoring goals looks too badly.
Manchester United made my day the worst yesterday with their lack of ability to prove their capacity and capability as an elite club. Rather they gave the world more reasons to be disappointed at Manchester United for their oftentimes unreliable and poor outcome of matches. When Manchester united was fixtured with the Crystal Palace for this very match, I had much hopes on the Manchester United guys to win against the Crystal Palace but reverse was the case with Crystal Palace lashing out the laziness of the Manchester United with a 4 goals over none. Now Manchester United will remain a their 8 position in the table standing of the league.