I agree with most of what Solskjaer said.
The only stuff I didn't like hearing was about how Rashford can play every attacking position and then later he talked about Tuanzebe being able to play all defensive positions plus midfield.
It's blatantly obvious to me that Rashford really struggles when constantly moved from forward to left wing to forward to left wing again and we've harmed his development as a player by doing this for so many years. He needs to be given one spot in the team and kept there as much as possible and the same goes for Tuanzebe. Already against Newcastle we saw him having a good game at centre back and then suddenly he's shifted across to right back. Greenwood is a striker but Solskjaer has regularly used him as a right winger, Gomes is a #10 who has been used on the left. And look at Pereira, he was highly regarded as a youth player as an attacking midfielder but last season we wanted him to be a defensive midfielder and this season we want him to be our right winger. It feels like we go out of our way nowadays to make it as hard as possible for a youth player to master a position.
I remember when the class of 92 came through and they were all consistently (as in more than 90% of their games) played in their best positions. Giggs on the left, Beckham on the right, Scholes as an attacking midfielder, Neville at right back, Butt as a defensive midfielder. Phil Neville is the exception as he was asked to play both full back positions and defensive midfielder and the result was he never mastered any of them. If that same generation came through now I feel like Giggs would be asked to play as a striker, Beckham at full back, Scholes as a left winger etc, would they have ended up reaching the heights they did? It seems doubtful to me.
Obviously this is not to say that players should never be played out of position and that giving a young player some games in unfamiliar positions is always a bad thing. I don't think that. However I do think we go to far in seemingly trying to develop every player into a versatile jack of all trades. Am I alone in thinking this?