The sad fact of the matter is that McClellan was not qualified for the job, never became qualified for the job, and was elevated to the position because he was a Bush loyalist from back home. McClellan's book, like McClellan's personality, offers nothing new. It's the literary equivalent of several hundred pages of "What He Said." Why would this surprise anyone? That is exactly what -- at a critical juncture in the life of the Bush White House -- McClellan's press briefings were like: "What the Handout said," was in fine and in sum what his doddering efforts at communications in front of the Washington Press Corp amounted to.
Now, because he could not work any faster and was finally tossed on his ear for it, Scott shall have a new master; and may he serve them as loyally as he did his President and putative friend. One thing he'll discover: the grass really is greener on the Left side of the fence, because on that side they will not question an inept boob who's useful to their agenda. Same boob, same facts, but this time around Scott will get a pass on the tough questions.
I am being completely sincere when I say that McClellan had one personal aptitude to being the Press Secretary: a dry, boring style that never made a good soundbite/clip for the MSM. Ari Fleisher and Tony Snow had real presence and clear intelligence which made them more apt to be used in soundbites/clips with the downside being that any "mistake" they made would come across as more theatrical than McClellan.
In the end of course McClellan, like any Press Secretary, is going to be utilized in soundbites/clips no matter what. I just believe the only effective style he had was to sound like a funeral director and thus lull some of the press into a gentle nap.