Yep. Ten Haag will realize it once Rashford can't perform well, or Rashford gets injured. No CF will be available to use because Martial often gets injured for a long time. Ten Haag may consider Eriksen or Bruno Fernandes as a false nine. But I doubt it will be effective, no other players can replace Eriksen or Bruno's role in the midfield line. Also, they are not strong enough to play as CF because they are not familiar with this position.

On the other hand, surely once Ronaldo is leaving the club, Ronaldo fans won't support Man United anymore. There will be a decrease in merchandise sales. Man United seems to have an impact on the club's income.

However, I assume Man United don't care about the impacts because they think Ten Haag is everything.
Ten Haag >> Ronaldo..