Filthiest relief pitchers

Editor's note: While traveling around the country, Mark Schlereth will be talking to MLB scouts and asking them to rank the best players at certain positions and in certain situations. The one rule is that the scout has to have seen the players in action. We also are giving the scouts anonymity so their teams' potential draft plans won't be corrupted. This week's scout is a national scout from a National League team.

Filthiest relief pitchers

Scott Bittle, Ole Miss (RHP): His numbers this season are simply ridiculous. The scout said he has a funky, unexplainable breaking ball that is a mixture of a slider and a curve; no one can figure it out.

Andrew Cashner, TCU (RHP): According to the scout, he comes out of the 'pen throwing gas with a high 90s fastball that is hard to turn around on.

Joshua Fields, Georgia (RHP): The scout told me Fields had some command issues last season, but he's back dominating this season. Not only does he have an overpowering 96-98 mph fastball, but he also has a great breaking ball that can make a hitter's knees buckle.

Ryan Perry, Arizona (RHP): Perry has a plus-plus fastball that sits at 97-98 mph. The scout said he packages that pitch with a stunning slider that can sit a hitter down when it's on.

Daniel Schlereth, Arizona (LHP): Daniel's fastball hits 93-96 mph from the left side, and, according to the scout, he also has a good changeup and a nasty breaking ball.

Zach Stewart, Texas Tech (RHP): He has a mid-90s fastball. The scout told me it works well with the breaking ball that he likes to put on the outside of the plate.

Bryan Shaw, Long Beach State (RHP): He has a good breaking ball, and the scout said his mid-90s fastball sits batters down.