I honestly think the structure part is overblown. What we need to focus on right now is the culture and it started with Woody - showcased by his embarrassing texts to players and trying to be pally with them, that's not a CEO's job - and has continued ever since. It has become a bit of a meme on here but the 'jobs for the boys' idea has a lot of truth to it and the club has had next to zero consistency when it comes to managers and how they are treated. There has been seemingly no discipline for a long time - Jose took on players and was canned, Ole just tried to keep everyone happy, Ragnick they literally took the piss out of, ETH they were happy with until it turns out you have to do a lot of running, now he can get lost.
Sort this part out and then look at the structure. We should not be signing any players for a while who are big names or cost a lot - we need to be more savvy, you can't change a culture overnight that has festered for 5+ years, it will be gradual but it starts and ends with backing the manager 100% even if you are planning to replace him at the end of the year. The players need to learn that a new manager coming in won't save them again, if they down tools the clubs simply speaks to their agent and asks them to start speaking to other clubs. It means a couple of years of news and more 'United are a circus' headlines but best to do it now in a much more aggressive way, than have it drag over the years as we've seen since SAF.