None of us watch training, so it's hard to say. You have to believe if he was amazing at Carrington he'd be getting more games. Let's see what happens under Rangnick. But, honestly, I think we made a mistake buying Van de Beek.
I am not trying to have a pop at Ole. But, looking back on his time, while the squad improved there were some strange decisions e.g. if you ever want to be more than a low block team why buy a right back that can't attack? Van de Beek's signing may fall into that.
For sure, we needed an upgrade in midfield. Still do. But was Van de Beek the ideal player to fit that bill? We needed a new Carrick but went and bought a new Kagawa. It's another indictment of our squad planning.
I agree with everything you have said there. For me I'm looking at McTominay in awful form and thinking that DVB should be given a run of games in the first team to see if he is a current better option. Even though I like Fred I do ultimately believe that we need 2 midfield signings to complete the team. And as you said a RB unless Dalot or Laird can fulfill their obvious potential.