Gerry Fraley, Rangers beat writer for SportsDayDFW.com and The Dallas Morning News, answered questions about the team in a live chat Thursday. Here are some highlights.Q: Which top prospect is positioned for a breakout season in the minors? (and perhaps to the point he reaches the big leagues)Fraley: RHP Jonathan Hernandez and LHP Joe Palumbo each have a chance to debut in the second half.