Is there hope for Justin Grimm?

A little past the halfway mark of the season, the Cubs have very few areas of real concern. The offense is one of the very best in baseball. The starting pitching has been healthy and extraordinary (with a few bumps in the road lately). The biggest concern throughout the first half has been with the bullpen. Rondon and Strop have both been very good, but getting the ball to them has been a big challenge. 

In 2015, there was a third reliever in the pen that posted fantastic results - Justin Grimm. But 2016 has been something of a nightmare for Grimm (or for the fans when he pitches). While he has been better than his 5.79 ERA would suggest, he has still been pretty bad. The 4.42 FIP and 4.12 xFIP both point to a reliever that cannot be relied upon in close games.

So is there any hope that Grimm returns to his 2015 level of performance? Let's take a look at some charts!