We talk Top 5 prospects for the Cardinals according to Brian Walton and the staff at thecardinalnation.com. The staff over there puts together a wonderful book each year that rates and details the Top 50 prospects and 11 of those players are at spring training with the big club right now. A catcher, two surprising infielders, a pitcher and an outfielder round out the top spots. Rule changes to the minors and more feedback on the Astros. Listen here: