Rafael Dolis RP, Cubs
(Yahoo: 31 percent owned, ESPN: 34.1 percent)
Cubs manager Dale Sveum is breathing a bit easier these days, as Dolis has two saves and a win since taking the closer role from the struggling Carlos Marmol last week. I'm not a big believer in Dolis, as he has struck out just five batters in 19 1/3 innings this year and he averaged 4.5 BB/9 in the minors, but his recent success has likely bought him a little bit of rope. Marmol has struggled for just about a year now, so he'll need an extended period of success to get his job back. Not holding my breath on that.
Waiver Wired Column