I'm a fan but I think he shortchanged himself, maybe he's not cut out for it (and none of us would have said people skills were his thing - but they're probably not Fergies thing either so...).
It's dented the legend a bit which will delight some people, but I'm more dissappointed that he's done future prospects damage. You could cite Keegan as the "its never too late" example but he was being brought into city who were struggling a bit, and Newcastle where he is/was a hero.
Basically Keegan made himself a 2nd rank manager, Roy will now struggle hard to be anything other than that, and if he's to be believed then he doesnt do 2nd best, so what are his options?? ..... the Ireland job ... boom boom !!