It's clear that we have spent poorly the last few years but who do you blame? The board and Woodward seem to have taken the stance of fully supporting the manager. Van Gaal wasted an insane amount of money and left us with a dysfunctional squad. Should the board have interfered? That's easy to say in hindsight. They appointed him and trusted him to make the footballing decisions, after all he should be better qualified than anyone else. Mourinho is now trying to undo the damage done by Van Gaal, which costs time and money.
Either you fully support the manager in the transfer market or you appoint a director of football. Each method has its own advantages and disadvantages. The club chose the former route and it hasn't worked out so far. In my opinion, clubs that anticipate changing managers frequently have everything to gain by appointing a director of football to have at least some measure of continuity. But it's not like we were expecting to have three different managers in the four years since Ferguson's retirement. Only thing we can do now is give Mourinho an opportunity to provide that continuity.
It's easy for Conte to say this. He inherited a squad that completely underperformed last season but was still extremely functional at its core. That squad has been built over a lengthy period of time and a lot of money was spent along the way. It's easy to ignore that now.
Both managers and board have to carry the blame. I understand why MU might have pursued the route of entrusting the manager with all decisions after the experience with SAF. But SAF was unique and I do not think it will be possible even at MU to have a manager for decades.
The club comes always first, before the manager and the players, so while it is good to work with the manager it is not to leave all decisions to him.
Chelsea has lots of holes in its team too and spent relatively little for Top EPL teams standards, the reason why Conte is being succesful nonetheless are in my opinion three:
1) he is by far the best manager and coach in the league, and I think you will appreciate this next year even more than you have this one
2) Chelsea did not have the CL and this especially with a coach like Conte makes a huge difference because he has been able tp work on the players a lot
3) The other top teams especially MU and City have wasted most of their money on average players that do not make the difference, the only exception being Pogba who has been paid a lot but will become the best in the world in his role even though so far he has not performed to his potential thanks some weird tactics from Mou
Net spend doesn't tell full story without context and putting any time frame is also flawed method as players like Hazard, Cahill, Azpi, Courtois and few others were all signed before 3 years.
There is no doubt ManUtd didn't do well with money spent but what Conte said is wrong. He is deluded if he thinks Chelsea are in the same bracket as Spurs when it comes to money spent. They spent around 120 Million this summer.
You are right net spend especially on a single season does not tell the whole story, but on a sufficiently long period is a great indicator of a clubs' management skills.
If you are constantly overachieving vs your net spend ranking it means that both manager and boards are doing a good job. Conte's remarks are being a bit misinterpreted here I think. His point was not that money is not important but that is not the most important thing and most of all it is key to spend it well. I am sure he will ask to invest a lot to the board next summer