He told the People: "He's teaching me all sorts of stuff ... how to study the weaknesses of different players and try to force them into areas where they do less damage. If you can't learn from somebody like Gary, then you might as well not bother. His dedication is second to none - he's the ultimate team player."
With Neville due back next month and We Brown ahead of him, Simpson knows he must play the waiting game.
He said: "Rio Ferdinand told me not to get carried away, to enjoy my taste of the big time but to keep a level head. And that's what I'm going to do."