I would say the club was doing exactly what you're saying, pre Erik ten Hag. The football side was structured in such a way that it required a manager led approach, which meant the manager(s) post Ferguson were tasked with fixing the football side of the club. And they were trying to fix the football side of the club, whilst being allowed their own personal recruitment staff. So it's not really a big surprise to see the club waste huge sums in the last 10 years due to the above reasons.
The difference this time is that the decision to appoint Erik ten Hag was made by the club's Sporting director. And it's the first time in our history that we're going into a new season with a Sporting director/head coach structure on the football side of the club. And the bulk of the work when it comes to reorganising/aligning/streamlining the whole approach on the football side of the club to support Erik ten Hag, will be the job of the sporting director and the big group of people working beneath him in multiple different departments on the football side of the club. And that's something we've failed to do since Ferguson retired.
Conte was the more risky approach for a sporting director imo, and he also doesn't stand up to scrutiny against Erik ten Hag as far as implementing a attacking brand of football. So for a sporting director who has spoken about wanting to implement a real identity on the pitch, which runs like a thread all the way down to the youth teams, as well as overseeing the development of the youth teams where we've got several players in the 16 to 20 age bracket, who could potentially become first team players in the near future, and will need to be developed, it makes no sense to hire Conte. And Erik ten Hag again wins out here against Conte imo. So if we look at United holistically from the first team to the youth, then it's easy to see why a Sporting director would wait for Erik ten Hag rather than opt for Conte.
I do believe under Ed Woodward we end up appointing either Conte or Pochettino.