Let me start off by saying this: I absolutely love the trade of Omar Narvaez for Alex Colomé.
Narvaez had a good season as a hitter. He showed about average power (good for a catcher) with a .154 ISO, and he was still able to reach base at a nice clip. That all led to a 122 wRC+.
However, according to Baseball Prospectus, he was about the worst defensive catcher in MLB, and terrible at framing. That is not good for a young pitching staff.
But what Rick Hahn and the gang got in return was an absolute steal.