I don't think he was necessarily *bad*, just an entirely different flavor than had ever commentated for the NFL and not what people wanted to see when watching football. We've grown accustomed to fairly dry, serious commentators. Humor (ignoring Madden's unintentional hilariousness) had simply never played a big role, at least on the level of Miller's irreverence. Definitely a misfire, but I give them credit for trying something different.