Consistency. It is one of the most elusive traits in fantasy sports, especially in baseball. The game's biggest stars can go through stretches of misery while their owners fight the urge to bench them for less talented players.
Every team across baseball has players who can be their knight-in-shining-armor one week, and the Invisible Man the next. Some players play their entire careers with the stigma of being "streaky" or "inconsistent," but in 2012, many players who were once thought to be safe bets are proving there is no such thing in baseball.
Some of the "boom or bust" regulars are listed here, but as an owner of one of them, keep an eye on when the boom time simply isn't worth the damage of the bust.