Maybe this has been said already but last year he mixed in his slider much more, I remember a post or an article on how his release slot was so similar between his fastball and his slider which was one of the reasons why he gave hitters such fits. It doesn't seem like he throws it much at all anymore so hitters are sitting on his fastball. Armchair coach here but I'd like to see him only work true save situations, no more of this two inning stuff and have Albers/JJ/Freddy operate as setup based on situation, then see him mix in his slider much more often, especially vs lefties which seems to be a devastating pitch. Maybe he's having issues with the slider though?