Think there's elements of this that are a bit harsh. Firstly with Moyes' time at Utd, compare it with LVG's. The media pressure on Moyes was unbelievable 'this squad are title winners only the title will do, you have to play the United way 442 with wingers, keep things as they are, you need to keep RVP and Rooney satisfied, you've got to play youth players that's the United tradition, the money is there but we will never overspend if there is no value.' How could he put his own mark on that? It wasn't even his philosophy of playing. When he reverted to 4231 around Christmas with Januzaj and Mata he actually got some decent results but got slammed for it because RVP was out. Not to mention that the likes of Ferdinand Vidic and RVP downed tools for him in a way that Rooney Welbeck and Januzaj didn't. Moyes wanted Bale Herrera Kroos, the board didn't deliver any of them apart from a reserve youth left back. He then panic bought Fellaini as Woodward bungled his targets.
Compare with what LVG got, a media saying 'this squad is rubbish and needs a clear out, top 4 is a good finish now, United need investment, it's time for a new approach'. So LVG sells off almost the entire squad including RVP, Evra and other older players he saw as not his players, and also pushed out Welbeck, Cleverley and Januzaj (so much for keeping the United way). Woodward desperate to atone for the summer before splashed out eye watering amounts on Di Maria Blind Rojo Shaw Herrera Falcao. Van Gaal then got to instill his own philosophy ( as far removed from Ferguson's as is probably possible) and scraped to fourth (largely thanks to a Suarezless Liverpool) on the back of a run of decent performances where Fellaini and Mata were his best players (Moyes' buys!) along with Herrera (a Moyes target).
I honestly think if LVG had followed Ferguson with those limitations then he would have met a similar fate. Moyes with a remit to do what he wanted and spend whatever he wanted with a group of now humbled players would probably have got top 4 playing his way (last year was an easy year for top 4) and he'd still be the manager now.
As often was the case with Motes he was not very lucky and the timing was wrong.
My one dark cloud against him ha his comments on Baines and Fellaini, no need for them. This idea that he didn't work for Evertob towards the end though is baffling. His 07-09 team was ruthlessly stripped apart and from scratch he sold Rodwell and started a painful process of rebuilding us, Gibson, Jelavic, Oviedo, Naismith, Mirallas all came in and the turnaround was very quick, we were back in cup semi finals and pushing Europe within a season. He then went and brought in Stones whilst continuing to give the likes of Barkley game time. Our home record in his final season was fantastic and the team was playing great stuff. Does this look like a manager who only worked for himself and wasn't bothered about the future of the football club?