Good analysis, but (1) the manager is clearly not the single voice behind transfers after Fergia and (2) I feel you are cherry picking evidence to benefit Ole a bit:
1. You bring Perisic to argue against Jose, but we chased a 31 year old Trippier whilst having AWB (new signing), Dalot and Laird in his position under Ole. I do not see how it is better than chaing Perisic especially given AWB was signed under Ole. Jose would be 100% criticized a lot if it were the case under him.
2. You are ignoring the fact that under LvG we signed Shaw and Martial at 19 who were first team/squad players after that. If Ole gets credit for his under-21 signings, why not LvG?
3. Pellistri and Amad have a lot to prove and it is not clear they would be at least squad players with us. Pellistri never played for first team yet, Amad player like 3 games in Italy before he signed made a couple of appearances and was behind the likes of Mata in pecking order under Ole. Amad is similar to what Dalot was at his age.
4. So for first team young players signed under Ole we are left with AWB is a huge question mark at the moment and Sancho (there was James who left, but then you have Depay under LvG). Not much really. I would not name it as some huge shift in focus. For the first team we still signed mostly prime age or past-prime players under Ole. Maybe an improvement over Jose's transfers in terms of youth.
5. "aren't shy about letting their teammates know when they've fecked something up" - do you think Ibra was shy about that? And what is the evidence for this for Sancho and Varane?Plus, with Bruno it ended up being outright disruptive on the pitch. Anyway, I do not think that you can talk about "cultural reset" if you are not dropping underperformnace, high fiving Maguire after red card etc etc.
I agree that in transfers under Ole we avoided some of the mistakes of the past. I agree that transfers have been on paper somewhat better. But again - we have a transfer committee, not the manager deciding singlehandedly and even given that our transfer record is questionable.
But I maintain that all the "cultural reset" and "youth focus" is 95% perception and 5% reality at best. And when it comes to stuff that was definitely on the responsibility of manager, Ole's record is quite poor. No youngster was promoted to be a squad player at least bar Greenwood. Many players were untouchable no matter now bad they performed. Average age of the squad is league average. Lots of players rushed back and overplayed (latest news is that Cavani confirmed that he was rushed against Spurs and aggravated his injury). Many disappointed squad players with broken promises. Wrong capitan choice, and the good potential captain (Bruno) not man-managed correctly but pandered to and as a result spend significant parts of each game arguing with referees and complaining....I could go on but I really should stop