"what evidence - and hope isn't evidence - that he won't?"
I guess you've never given the benefit of the doubt to anyone before, huh? Never got behind a new coach before? Never hoped for the best? Never been the optimist?
If your mantra is "You suck till you prove otherwise" then I can't help you. As for me and my house, we started out with hope and got behind CGC, same as we did for CBR, CBL, CGO, CCG, and CPJ. To do otherwise is anti-Tech, and quite frankly part of the problem with the overall fan base.