Speed kills. Whether that be by the arm or legs. But this isn't no SAGNOF post, this is the weekly look at strictly bullpens. At what point do we stop looking at velocity and its effectiveness being a correlative? Probably never, as the statcast era has never looked stronger as geeks type in the square roots of derivatives to figure out the best angle of deflection for them to walk down the stairs in their parents basement. It's a tale as old as time, and people like me mock math and numbers because, well... I am lazy. Numbers always existed, but now they are so finite that you can get a feet per second drop of a the pin that no one can hear. So maybe I should delve into the fray here and take a look at the early season velocity for closers and how they compare to last year and how they correlate to K success. Velocity isn't the end all be all of reliever success, but is fully in the forefront when studs like Craig Kimbrel and Kenley Jansen are teetering on slow-pokes compared days of yore. So I made a hand dandy chart, comparing last years average fastball velocity, K/9 and Swinging strike % to this years to see where the relationship between success, worry and full on panic in the closer realms exist.
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