I read early everything Guy Kawasaki writes. Here is what says about working with Steve Jobs:
Experts are clueless.
Experts—journalists, analysts, consultants, bankers, and gurus can’t “do” so they “advise.” They can tell you what is wrong with your product, but they cannot make a great one. They can tell you how to sell something, but they cannot sell it themselves. They can tell you how to create great teams, but they only manage a secretary. For example, the experts told us that the two biggest shortcomings of Macintosh in the mid 1980s was the lack of a daisy-wheel printer driver and Lotus 1-2-3; another advice gem from the experts was to buy Compaq. Hear what experts say, but don’t always listen to them.