Sports car is the cost in this situation, the squad is the upgrades you can make to your car. Everton can afford a 65mil wage a year's worth of upgrades, Utd can afford 180mil a year in "upgrades". If you build the same quality car with the same amount spent then..... you're doing it wrong.
There is a reason why Everton look much much much more threatening against top teams now. Limited style of football is predictable, there is a reason Rene knew what Utd were planning on doing, and had no range on their style of play.
The players aren't playing well, which is the responsibility of both player and manager. Sometimes you don't know who is at fault, sometimes you get the situation where a new manager comes in, gets very very clearly worse performances out of 90+% of the squad and it's very clear who is at fault.
There is a reason why top sides play similarly and sides with less ability to compete, less money, often end up following a different route. There is a reason why certain sides can win a cup and others don't. Everton never looked like winning one, but Wigan, Swansea and others have. Then you have others still your Brum's who go all out defence and occasionally they'll get a cup but never ever consistently.
I really can't understand Fergie's part in recommending him though, I can't get my head around him recommending one of his friends for the club he supposedly loves. I can't believe Fergie thought Moyes would do well.
People do like to forget what Fergie achieved before being Utd manager that bought him time at Utd, he was a proven winner and change was occurring under him.
I said at the time, and currently, a fresh manager who isn't set in his way of doing things, or a proven winner, a proven mediocre manager. Most people get set in their ways, Moyes fielded a fairly dull team for a large number of years without looking like he could win anything. That was always the worst choice, his idea of management is 10 years at Everton, he's not used to a big budget, nor the huge ego's, nor the number of games a season, nor the winning mentality.
Look at Guardiola or Mourinho, or many others, it's not necessarily about how good you are, both were fresh faced managers when they got success. They both learned to manage while at clubs that expected to compete for everything every year, and took over clubs that were trying to win everything every year.
If you take over Walsall or learn to manage their, your priorities, ideas, targets, are all different.
Moyes has a no lose mentality written all over him, the way he plays, the way he sets up teams, and the sheer number of times he's said something along the lines of "I have no idea how we didn't win"... precisely, because for 10 years winning was incidental, his target was always to not lose, he never learnt how to win. While not losing and playing get down the wings and knock it to a big haircut football, if wins happened they were welcomed, but he hasn't spent 10 years learning and teaching a team how to win when things are difficult, just how not to lose..... He is literally coming out after every game and telling everyone he doesn't know how to win a game every time they drop points.
He couldn't be more ill suited for the job. Yes, some people adapt and adapt well, others don't, the majority don't adapt well to change and Moyes has shown literally no ability to adapt at all. He never changed throughout his time at Everton. I never thought he'd be able to adapt, there were zero signs he was trying to push Everton on and improve their style/ability to win over time, and after 6 months at Utd it's clear he can't adapt to a club with idea's other than not losing.