Yes Jose will care since he (and every following manager) would rather get to have their own players instead of those a DOF thinks necessary, Mourinho already fell out with that clown at Chelsea who oversees transfers. Fans areound here are so fickle that when we have a bad window or two the answer must be to hire a DOF and completely ignore all the clubs with DOF who make horrenedous decisions.
Mourinho does have a particular style, he's just on record as saying when you play against a most talented team you need to be tactically superior. He's gained a reputation for being a defensive coach because of performances vs Barca who most people believe had the best team of all time, I'd much rather win the way he did with Chelsea/Inter than take them on like we did in 2 European cup finals and get embarrassed. Watch Porto in the champions league final vs Monaco, they weren't defensive and neither was Inter when they played Bayern in the final because they didn't have to be. Mourinho is absolutely correct in his assessment of our team/squad and how capable it is vs the elite sides in europe.
Just saying we're United we should go toe to toe with anybody doesn't make up for the shambles our transfer policy was for almost a decade.
KDB was competing with Hazard/Willian/Oscar/Malouda/Sturridge/Schurrle/Mata for a place in that Chelsea team. No one was kicking down doors for him to be in the starting 11 at that point, no fans/media/pundits nothing and given Abramovich is going to sack any manager who falls beneath a certain standard why would any Chelsea manager bring through the youth?
Why ignore the excellent transfer business he's done? Fabregas/Costa/Willian/Matic all superb buys. It was Mourinho who brought in Salah at Chelsea as well as Modric for Madrid and I could go on.
Lindelof is the only transfer he's made which has been a disappointment, we got what we paid for in 30m for Miki. Everywhere else has been clear upgrades and we've gone from languishing in 5th/6th to 2nd so clear progress is being made.