"After we had been criticized in the press for a lack of disciplined messaging earlier in the campaign when we provided frequent and unscheduled access to the candidate, we felt it necessary to adopt the same deliberativeness and discipline employed by our opponents and rely less on impromptu press conferences with our traveling press, and more on interviews arranged in advance," he said.
The news that there was tension between the vice presidential candidate and McCain's aides is not new, but it is the first time Palin has admitted it openly.
In the book, which documents her experience as McCain's running mate, Palin recalls how she felt before the vice presidential debate in Philadelphia.
"Suddenly I felt like I was on thin ice," Palin says of the moment she realized the debate preparation was not going so well.
She tells the story of top aide Steve Schmidt suggesting the campaign fly in a nutritionist.
"He launched into a discussion of nutrition philosophy," Palin writes, "holding forth on the importance of carbohydrates to cognitive connections."
A source in the position to know says it was an uncomfortable discussion, but it was never about brain function. Aides were concerned that Palin had been dieting and losing too much weight, the source said.
The former beauty queen also describes being saddled by the campaign with a $50,000 bill for the cost of vetting her as a vice presidential candidate.
"I had no idea, nor was I ever told, that we would have to pay personally to go through the VP selection process. (If I had, I would have kept my answers shorter!)"
Palin appealed to the Republican National Committee and the McCain campaign to see if they could help with the expenses. But was told if they had won they would have covered the expenses, but since they lost, the responsibility was hers'.
"If anyone questions whether I was properly vetted, at least now I can tell them, 'Yes, and I have the bill to prove it!'" said Palin.
Campaign aides deny that they ever billed Palin for the vetting process.
Much of the book, written quickly by Palin at a kitchen table in a tiny apartment in San Diego, is dedicated to family.
Palin writes about standing in the bathroom of a hotel room and seeing the news announcing that her teenage daughter Bristol was pregnant.
"I nearly gagged on my toothbrush," Palin writes. "Oh God, I thought, here we go."
She was upset that the campaign accidently released a statement she had tried to revise, saying she and husband Todd were proud of Bristol's decision to keep the baby.
"In no way did I want to send the message that teenage pregnancy was something to endorse, much less glamorize," she pens.
In an interview with ABC's Barbara Walters, scheduled to air next week on "20/20," Palin was asked about the moment she found out her daughter was pregnant.
"Did you know she was sexually active?" Walters asked.
"No, and that is why it was shocking, truthfully we were devastated," Palin said.
Palin never refers by name to her grandson's father, Levi Johnston, who has criticized the Palin family for being too dominating. But in an interview with Oprah Winfrey to air next week, Palin suggested he would be welcomed at the Thanksgiving table.