Okert , a starter turned reliever , has blossomed in the bullpen for Oklahoma this season .
The reduced strain on reliever 's 's 's arm has resulted in an increase in reliever 's starter 's Okert 's his fastball and slider .
Okert , a starter turned reliever , has blossomed in the bullpen for Oklahoma this season , and the reduced strain on his arm has resulted in an increase in velocity on both his fastball and slider .