First in a series looking at players who could be targeted by the Broncos when the free agent negotiating window opens March 15. During his first eight years on the Baltimore Ravens’ coaching staff, Don Martindale prepared to face then-Cincinnati quarterback Andy Dalton twice a season. So when Dalton, having moved to the Dallas Cowboys, traveled to face the Ravens last December, Martindale had plenty of recall information. “He has different skill around him so that might look a little different, but he’s still Andy Dalton,” Martindale told reporters.