Why is Stephen Drew Available in 75% of ESPN Leagues?

"...The 16 strikeouts were all well and dandy until Drew hit a walkoff 2-run ninth inning bomb off Hoffman, his first homer of the year. Drew was often drafted among the top 10-11 shortstops before the season started, and has made his way to many a waiver wire since then, batting only .224 thus far. The homer was an encouraging sign, though, as is his 1.1 BB/K ratio. I had him ranked as the 14th shortstop in the pre-season, and still think he can reach the .284/16/66 line that I projected for him then. His contact rate of nearly 87%, combined with a low BABIP suggest that he'll be hitting like expected some time soon. In 674 minor league at-bats, he hit .315 with 31 HR and 121 RBI to go along nicely with a .385 OBP. As he's only 25% owned in ESPN leagues, now might be as good a time as ever to nab him."