The scrutiny. The technology. Despite the massive changes that football has undergone, Moyes has found a way to navigate it all - and successfully.
For Moyes' former long-time physio and sounding board, Mick Rathbone, the way the Scot - now 62 - has managed to adjust and reinvent himself comes as no surprise. Rathbone says Moyes' ability to adapt - while refusing to bend on the fundamentals - has been the key to his longevity and success.
Speaking to Tribalfootball.com about the third of his best-selling and influential trilogy, 'The Smell of Football: One Hundred Days in the Dug Out', Rathbone recalls one moment at Everton involving the old- and the new- way of approaching player fitness which summed up Moyes' approach.
Rathbone says, "He has all the right ingredients. He's an extremely nice guy. He probably wouldn't want me to say that. He likes to be maybe be tough and stern. Anybody who knows him as well as me, he's a fantastic guy.
"I won't say his bark is worse than his bite. He would hate that. But he's a fantastic guy. He cares about the players. The players would healthily moan about him in a good way that you want.
"But they all knew when Dave is the manager, you're going to have your best years as a player under him. And everybody knew that. He has that blend of being a very good human being, a fantastic knowledge, a fantastic reader of the game, understanding of the new stuff, but knowledgeable that the big thing is to win your personal battles."
Wipe the sick off your chest
Rathbone then recalled, "I'll tell you a great story about Dave. We just got all the new sports science stuff going and it's here to stay and one day it was the hardest day of pre-season. It was the last day.
"We did the horseshoe runs and they were hard. It's like more or less four laps of the pitch, you've got 60 seconds and you're running flat out it's a really hot day.
"Well, we'd done six and everyone had got in, but lads were on the floor, a couple of lads had been sick and we're waiting for the dreaded 'one more', or 'that'll do you lads'. Anyway, we're on the floor and Moyes goes, 'one more'."
"The fitness guy comes, a foreign guy, lovely fella, but he's watching it all on the monitor, 30 yards away, the heart rate and that. He comes running over, he goes, 'David, David, no, no, no more. Too much, too much. Their heart rates are through the ceiling'.
"David turns to him he says 'I don't give a mmpph about the heart rate stuff. I don't go off your fancy machines. I want to see the man who can wipe the sick off his chest get on the
line and give me one more time because I'm going to Chelsea in two weeks time for the first league game. They're the guys I want on my team bus'."
Rathbone admits in that moment, he also drew lessons from Moyes' attitude on the day - that the old and the new can come together.
"There's a great truth in that and he taught me a lot about the mentality of running as well.
"I've done loads of work, nobody's ever died in the running sessions we put on. There's room for sports science and there's a room for digging deep.
"Yeah, we accept what he's (the fitness trainer) saying we get this and that, but this is not about physiology this is about heart. So that was the day we saw a lot of a blending of the two. It was very cleverly done."
- The Smell of Football III: One Hundred Days in the Dug Out' by Mick Rathbone can be purchased at Pitch Publishing