Have you ever heard a music band that was just off? Sure, each musician was probably great, but for some reason it wasn't coming together? I experienced that once, but the reason was obvious: the drummer was missing. Because of this, the band sounded disjointed and off-beat. You could also see the concentration on their faces as they all strained to keep the beat. Nobody, include me, was enjoying themselves. When he finally showed up, they were in the middle of a song and kept playing. He...