They were not good in the last season though they had been trying good on the previous seasons but the recent concluded Premier League they're very bad that could not even qualified for the next premier league season and not even in the Champion League. Though football is a seasonal Lucky game, all what they have to do now is to prepare the team very well so they can qualify in the premier league after this forthcoming season.
I think Chelsea will do well in this coming up season because their form is good now.
Manchester United is one of the big teams in the Premier League and we cannot only see a season with bad performance so that it will not survive in the English League.
Even in such a bad appearance last season shown by Manchester United I didn't think they would be degraded.
There are many changes made by the coach slowly and I am sure this season will be much better than the previous season.
People see Chelsea doing well because they are based on their performance when they beat PSG at the Club World Cup but it is not enough to guarantee that Chelsea will be much better when competing for titles in the league.