If Manchester United faces Ajax, in my opinion, Erik Ten Hag holds the key to the club's weaknesses because he has coached that club before and Erik Ten Hag will definitely prepare an appropriate strategy to beat the Ajax club. However, this could also happen otherwise. Ajax has experienced Erik Ten Hag's coaching system and already understands Ten Hag's characteristics and perhaps this character can be read by the Ajax club so that this could make it easier for Ajax to beat Manchester United. In my opinion, this depends on how Erik Ten Hag handles his club, even so I still support Manchester United compared to Ajax.
What you have described is absolutely what the expectations should be but the challenge will be in if that will later turn out to be the actual reality with Manchester United and Ajax. From the time ten hag left Manchester United till this point, I believe some changes have been made and so he cannot be sure completely if he's still got intact all it takes to easily get ahead of the team, rather he may only try his best and use the little information he's got along side some relativity assumed looking at what applies currently with the team.
Ten Hag's whole scenario is like seeing an aging boxer who has lost his golden years seeking to relive them. Yes, he is familiar with Ajax from the inside out, but that's bullshit. It won't work. Particularly if Manchester United faces Ajax, I am subtly hoping for them to have their butts handed to them. Perhaps a couple loses will rouse these folks and send Ten Hag scurrying. The game has evolved, and Ten Hag's mired in the past
Ajax isn't the team he left behind. Ten Hag's still clutching his old playbook while they have changed. For United, this is a wake-up call—a hard lesson that drives innovation and adaptation. Perhaps losing Ten Hag will be the finest thing that ever happened to them. It's time for some fresh ideas someone who can guide this squad into the future