I guess we'll never really know whether they were the stupidest fucking people on the face of the planet or if they've decided that "we're stupid and incompetent" is better than "we were just lying to our big donors in the final couple of months to skim some more cash out of them." Obviously they were stupid and incompetent - at running a campaign, not at grifting - but they want you to believe they were stupid, incompetent, and completely delusional.
And in 2016 all of the candidates will be lining up to hire them again, because that's how the GOP works.