When trying to evaluate Sean Doolittle , it’s never about talent. Also, he’s one of the best baseball players to follow on Twitter. Last year, Doolittle racked up elite numbers with three wins, 25 saves, 60 strikeouts versus six walks, a 1.60 ERA, 2.68 xFIP and minuscule 0.60 WHIP. He also generated a 16.8 swinging strike percentage, held hitters contact to less than 70 percent and finished with a 37.1 chase rate.

Doolittle does yield too many fly balls, 48.4 percent to be exact last year, but works around them by reducing hard hits. According to Statcast, Doolittle owned a .163 expected batting average, .258 expected slugging and allowed hard hit only 24.2 percent of the time. He mainly uses his fastball but his pinpoint control fuels his success. Here’s a look at his pitches from last year in a plot map:

Seeing how Doolittle uses high fastballs, it explains his higher rate of fly balls. In order to illustrate his strong expected tendencies, here’s his pitches last year...