Bollocks. Moyes had achieved his fair share at Everton, just because he didn't win anything doesn't mean he didn't do well. Obviously he's not going to be as accomplished as Fergie, not many people are, but to say he didn't achieve anything at the top-level, and that he didn't have a winning reputation at Everton, is bollocks. That's not to say he's necessarily suited to managing a 'big' club, mind you, just that you can't say he achieved nothing at Everton without sounding like an ignoramus.
No offence... it's.... Everton. Manchester United is the biggest club in the world, I think you want something more proven than a man who consistently gets Everton in to the top 6. As good as you may think his achievements are, Martinez is doing pretty sterling so far as well.