John Axford shouldn't have been the Rockies' closer in 2015, but he stepped into the role and performed well, except for one notably awful ten-day stretch.
The Colorado Rockies were all set by the middle of April when Adam Ottavino took hold of the closer's role and proved himself ready for the ninth inning spotlight. And then... Ottavino tore the ulnar collateral ligament in his right elbow, and the club was suddenly without a closer.
With Rafael Betancourt a shell of the reliever he had previously been, and LaTroy Hawkins having already lost the closer's role earlier in the year, the Rockies turned to John Axford to finish games.