Brett Talley (@TheRealTal) is joined by Glenn DuPaul (@glenn_dupaul) to nerd out a little bit this week.  Glenn is an Economics major who interns with Baseball Info Solutions (a major stat provider). As a result, Glenn is really knowledgeable about the statistical work it takes to develop some of the more complex sabermetric stats. And he has done great work trying to determine the cause of certain things so that we can better predict things going forward. Brett asks Glenn about some of his published work, asks Glenn to explain some of the statistical models he uses, and they talk about what might be the next big thing in sabermetrics.