I don't think you did. I have no problems to confirm that not every player can be formed to be a great player. But that isn't our issue. Fergies teams didn't just consist of top players, Pep made and makes use of Delph or Zinchenko. The issue is, if you know, some of your players don't cope well in certain situations then adjust your system so they don't end up in these situations as often.I think I've addressed most of this in my reply to @bond19821982.
At the end of the day players have a ceiling and a level. Fred could spend every spare hour of his time doing keep ball with Carrick at Carrington and he'd never be good enough.
Even Klopp couldn't turn Klavan and Karius into top players. At the end of the day you can only do what you can with what you've got. Undoubtedly what we've got is partly down to Ole. I would just caution you to not think Ole going will change everything.
FFS it is exactly the same thing that we are seeing our opponents do against us: they know we are quite good at countering but subsceptible to them as well so they set up deep where our weaknesses against low blocks (how big they might be and no matter if this is a problem for other teams as well) can be exploited while countering with fast and powerful dribblers. We saw it against Wolves, we saw it against Newcastle, we saw it today as well, even though Aston Villa even went the extra mile to put pressure on us too.
These are game plans that are prepared. If we know that McFred are needed to have a chance in a midfield battle but they are weak progressing the ball then make sure they have easy passing options all the time.