After a small health-related hiatus, THE Ryan Sullivan Show returns and we proudly welcome Baseball Prospectus's Rob Mains!

Our conversation centers around three recent articles Rob has written, beginning with his recent piece observing that slugging percentage is superior to on-base percentage in predicting runs scored. Next we talk the business of baseball, first discussing how declining major league attendance might actually be desirable for a team's bottom line, then Rob dissects the sale of the Kansas City Royals. Finally, Rob talks about the Pittsburgh Pirates, and gives his World Series prediction.

Thanks to Rob for joining the show, and to you for listening!