Sometimes, the race goes not to the ready, but the fearless. Since 1999, when I was first published, I've seen a lot of wallflowers wither. I've watched the careful planners fail, mainly because--and this is especially true in recent years--the industry never stands still, so any sort of strategic career goal-setting ends up a dart thrown at a moving target, a careening, twirling dervish that blinks into and out of Whovian dimensions. The people I've seen prosper have tended to be those on the vanguard. The earliest arrivals gain momentum, garnering most of the readership (and profits) that have already dried up by the time the timid come on scene. Sometimes, of course, the quick-to-leap fail. Splattering against hard surfaces is a very real risk when you're traveling at breakneck speed. Sometimes, too, they churn out substandard work that fails to maintain their momentum. But occasionally, they hit a sweet spot, merging opportunity, sweat equity, and attention to...