Whatever the agenda of the OP, some of what he says is true. Coleman hasn't done any better with mostly the same set of players. It's now kind of absurd to think that Grayson was peddled after a 3-3 draw against Bolton, a team now relatively comfortable in the league. On current form that would be one of our better results.
What I have to wonder, however, is what Coleman might have done if he'd been able to bring in the same amount of players as Grayson, and also had a longer period - inc. pre-season - with them. Coleman at least brought some confidence and determination in to try and change the mind-set of failure. He hasn't achieved it yet but I never felt for a second that Grayson would be strong enough to have tackled some of the issues in the first place.
The decline under Moyes only sped up further under Grayson - he looked out of his depth from day one. I don't believe any of us are crying any real tears for him.