A year ago, I was at Arizona Diamondbacks camp late in spring training. The day I was there, Zack Greinke, the team's new $206.5 million acquisition, threw a bullpen session. Tony La Russa and Dave Stewart stood behind Greinke and watched him throw his first dozen pitches or so. That was all they needed to see. Greinke looked fine, methodically working through his repertoire, and the two executives moved on to something else. It had been a great spring, optimism was high, and everyone couldn't wait for the season to start.
Then A.