Very good pointless insult of Pereira there...I know it's the trend on here so not having a go at you personally but it's getting boring seeing people on here insult players who actually do give their all for us.
It isn't so much about prioritising games. It's about instilling some actual management and standards upon the team. It doesn't matter if it's the PL or the Europa League, players who wont do their jobs properly shouldn't be considered. It's all well and good saying that say, Garner is too inexperienced, and that Matic "failed" to do his job...I could have told you Matic would fail to do his job before the game, because whenever he has played this season he has not even tried to do his job in the first place. It is impossible for a player to do worse than someone who isn't trying. Yet he is still getting picked. I like Mata but the same applies to him. He does not try to pick out forward passes, he does not try to get on the ball. He is not doing his job. What message does this give you about the management of the team as a whole? It is telling you that there are no standards, no requirements, no direction. Do what you want, it doesn't matter, we'll play you anyway.
This isn't a team getting good results where you can afford to give one or two slackers or lost players a chance for the benefit of resting someone else. This is a team that is already in a mess and needs some actual direction. The players doing their jobs and trying to hold things together ARE the ones who are inexperienced or of limited ability. Like Pereira, or James, McTominay etc. You just more or less said the same yourself. This means there is no room at all for passengers, taking luxuries, arsing about with stupid set pieces, etc. ...yet, this team does more of this than literally ANY other team I have seen. Some of the stuff we do during games has me in near disbelief. They are practically crying out for a manager to get a hold of them.
What you are suggesting is that Ole couldn't get any improvement from this team by instilling some kind of discipline and plan. Absolute basic stuff. For example when we get a freekick 700 yards out, Rashford is told not to have a shot at goal. Actually practicing corner routines. Teaching Young to take a throw in less than 15 minutes after the ball has gone off the pitch. Pointing out that walking up to a player 3 seconds after he has the ball and then letting him do whatever he wants with it anyway isn't technically "pressing" him. These aren't things that are down to the squad depth or quality of players. THey are things you see lower league sides (for example, Rochdale), routinely doing much better than us.