On this episode, Mark Simon is joined by ZiPS projection system creator and FanGraphs writer Dan Szymborski to talk shop about creating a projection tool.Dan talked about the principles of ZiPS, how he created it, and how the system works. He cited specific current examples, including whether the A's will lose 120 games, how the projection on Matt Chapman changes over time, the challenge of projecting defense from minor league data, and why the system projects what it does for George Kirby.Mark was then joined by SIS VP of Baseball, Bobby Scales. Bobby talked about how projection systems are used by teams. He then talked about a game that he and Mark watched recently in which Bobby correctly predicted what was going to happen in the 1st inning. He explained the factors that went into that prediction.Thanks as always for listening. Please follow us on Twitter at @sis_baseball and read our work at SportsInfoSolutions.com (check out our recent piece on pitchers getting hit by batted balls). You can e-mail us at Mark@sportsinfosolutions.com.