Tolle has a very high ceiling, but is still a potential relief profile due to the secondaries. Early has been solid, but the underlying metrics could lead us to believe that there will be some regression over the course of this season (4.68 xERA, 13th percentile barrel rate). When one pitch could end a career, I could see why Breslow could be hesitant to extend these two. I'm not sure the bad Bello extension affects it either.