This week, Brian and Blake open with the St. Louis Cardinals’ bullpen change with Shawn Armstrong out and Riley O’Brien in. Next up is the many moves across the minor league system and ramifications, currently and looking ahead to roster expansion on September 1. Among the players covered are Michael Siani, Victor Scott, Tekoah Roby, Jimmy Crooks, Leonardo Bernal, Sammy Hernandez, Quinn Mathews, Michael McGreevy, Ian Petrutz and J.J. Wetherholt.