Glad you mentioned Foulke. Foulke pitched 105, 89, 81, 77 and 86 innings in the years before he got to Boston. (and yes, this might have been causal to his arm troubles, but flags fly forever). He pitched 83 innings for Boston. All of those numbers are more than any season Kimbrel has pitched. Foulke was used to get 8th inning saves, and the reason he was the choice was because he could pitch (and was called on, all the time) in very high leverage spots. Kimbrel has been dynamite in the 9th inning, 0 runners inherited spot that is 2015 closing. He has excelled at a far easier gig than Foulke had. And indeed, Foulke excelled in multiple obscenely difficult spots.