Chelsea have almost the same problem with United in this season, not consistent keep in the winning race make top fourth position almost difficult if losses for several matches left. Have bit problem with Cole Palmer injury and he was absent for England national teams at world cup qualifier match in this week.
Chelsea and Manchester United have similar problems. Both have inconsistent performances. And Chelsea's defense is also relatively weak.
However, Chelsea's attacking players have performed much better and are stronger than Manchester united's. In 29 matches, Chelsea's players have scored 53 goals, while Manchester united's players have scored 37.
However winning the Conference league title is not difficult for Chelsea. Chelsea's opponents in the Conference League are relatively weak. So Chelsea's main target now is probably to secure fourth place in the Premier League table and qualify for the Champions League. Enzo Maresca is probably moving towards this goal.
If Chelsea succeed in winning the conference league they will be European champions and if Manchester United fail to win the Europa league then Chelsea will be said to have a better season than United. At the time both sides are struggling to win games and stay consistent however Chelsea are still better than United because of their standing in the league table and until United win the Europa League title Chelsea are better than them.