Here's an excerpt:
Saarloos was a very successful college and minor league pitcher, but it appears that the scouts were right to think that his stuff wouldn't translate to major league success. Baseball Prospectus 2003 said of Saarloos, "There’s a debate as to whether Saarloos can thrive with a fastball that’s a few ticks south of average. Put us down squarely on the side that believes his minor league dominance portends success in the majors." I would have agreed wholeheartedly. Saarloos isn't a bad pitcher, but he hasn't quite lived up to that prediction or his minor league resume. But his current pitching style, as seen through pitch-by-pitch data, would seem to reflect an approach based on a lack of stuff. This is in turn reflected in his walk and strikeout rates.
But at least Saarloos has that sinker. As a back-end starter, the Reds could do a lot worse than a grounder-inducing junkballer, particularly in a home run park.