In fact, in several matches the decision not to bring Ronaldo in the early minutes of the match had a significant impact which give the opponent a chance to put pressure on him. True or not I have seen Manchester United's front line more often under Marcus Rashford's control, Cristiano Ronaldo has rarely been seen since the start of the season. Despite having played at least six match, the minutes of play are much different from last season.
Even Manchester United are also doing well without Ronaldo in their main line-up, so it won't be a big problem if Ronaldo is sold at the end of the season or in the next transfer window. Ronaldo's performance this season with Manchester United is very different from last season. Ronaldo has played 8 match for Manchester United so far in official competitions, but Ronaldo has only scored 1 goal. I know his playing time has decreased since the start of the season, this must have something to do with his demand to be sold some time ago.
As an experienced striker and with his skills, Ronaldo is not over. He's still able to show his best but I no longer think he's still 100% happy to be at Manchester United. Even if Ten Hag played him, then I'm sure his incredible performance would be hard for us to enjoy.