It does supplant the memories (of Katrina), assuming he does well. But it might be a little hyperbolic to call it a second chance.

I have fond memories. It was an amazing game.

Now those memories come back to haunt me
They haunt me like a curse

It kind of lances the boil.

It is quite revealing of things that had been suspected about which there had been little clear evidence, about his clout inside the White House.

Bush likes people who keep low profiles. He likes to be the star. He doesn't like competition from within.