9 times out of 10, if there's a play at the plate, you'll see the ball bouncing around somewhere after he's dropped it or misplayed it.
And Sunday wasn't the first time where he failed to catch foul tips for Ks. Sure, every catcher deals with that, but Bard fails on the ones that should be caught on a regular basis. And he fails to get into proper position and field the ball the way he should. Both of these guys are backup catchers. But relying upon Bard is sacrificing defense up the middle for a mild offensive consideration. Nieves has batted well in limited at bats, and is able to produce and knock in runs even batting 8th. He's a good contact hitter with better skills. The team needs better defense.