Matt Belisle didn't arrive in Denver as a high-priced savior; instead, he was a former starter from Cincinnati who reinvented himself as a high-frequency weapon out of the bullpen, and for six seasons, he was the rubber-armed heart of the Colorado relief corps. He reached a definitive level of efficiency in 2010, posting a career-best 2.93 ERA and a 1.087 WHIP over 92 innings, and the year after, he had an atypical 10-4 record for a middle reliever. In 2012, Belisle led the National League by appearing in 80 games, a grueling workload that would have broken most arms at…