His sticking to hires all has to do with the contracts he signed. Previously McDermott, then Rhoads, and now Hoiberg with the biggest of all.
And it's just as much our fault as it is Pollard's. Well, except McDermott. I have no idea what the point of that contract was.
Don't forget that JP offered Chizik an extension to his contract after going 5-19 (before he took the Auburn job). So he certainly is loyal with blind faith.