One thing that you realize right away about Cubs Assistant to the GM, Shiraz Rehman, is that he is a likable, unassuming guy. The second thing you get is that he understands the value of analytics as it applies not just to baseball, but to sports and business as well.That was Rehman’s background, as a trader and financial planner before getting the baseball bug and joining the ranks of the new “Moneyball” crowd, first in Boston and then in Arizona and now in The Windy City, where he is part of Theo Epstein and Jed Hoyer’s crew tasked to finally ...