Fred brings running and harassing opposition footballers I'll give your that. He is useful in this latest limited sub role since we have 5 subs a game. Greater passing range? I disagree, Fred is an appalling passer on his own self, DVB has shown nothing better on the other hand in the same regard.
That second paragraph was my point exactly, he has shown absolutely nothing in a the 1.5 seasons here, and he continues to struggle to impose himself even with his former manager here. The answer for the second paragraph in regards to Fred, IMO is also the same, just the sample size is 4 years and counting. I just hope we don't make the same mistake with DVB that we are making with Fred right now. That being, if this season DVB doesn't demonstrate anything of the note, he should be gone, Fred is 2 years too late for that.
I agree with others about Fred, you are heavily underestimating him in my view. Fred is a machine when it comes to harassung opponents, and has a fantastic stamina. He was a standout player under Rangnik for this reason alone.
He is also very technically sound, and is a very good, but erratic short to medium range passer. What is special with him is he can strike quick medium range passes accurately - most of the time. This is very valuable in transitions, which meant that when transition play worked under Solskjær, he was often a very valuable player.
On the downside, his erraticness, seems to me to do with him being a very instinctive player and not very mentally disciplined. Whenever our play has been less organized, or going through, Fred has had a high amount of ridiculous misplaced passes, shocking ball losses and positional glitches. This was apparent when he came under Mourinho, and the few times when Solskjær was changing or attemting to change tactical style, as well as under Rangnik (passing play) and recently under Ten Hag.
I’m not sure wether Ten Hag will stick with him, because Fred can’t be deep 6, and he’s too indisciplined to protect a deep lying playmaker like Eriksen or De Jong, and he’s not advanced enough in his understanding of play to play as a 10 (unlike Van de Beek). I think he can be a brilliant alternative when we play with Casemiro as a six and Bruno as an 8/10, when Eriksen needs rest or to shore up games. But Ten Hag needs to get to the point were he can trust him first, which will be interesting to see if he does.
Regarding Van de Beek, I think Ten Hag said something along the lines of his confidence being central to his way of playing, and him being a systems player. It seems Ten Hag trusts Fred more at this point, but time will show.