David Harris finally wrote the article on NSF that was a long time coming. Ares V might very well move to 5.5 segment SRB:s. There goes the commonality with Ares I.
Mike Griffin, Scott Horowitz, Doug Stanley and the others might have picked an architecture with too little margins and too many limits.
In other links, the Space Review has an article discussing how NASA (as well as the public and the contractors) is misguided with it’s “program mentality”, or something in that vein, I haven’t read it yet, but if Monte Davis comments that it’s good, then it probably is.