Pitching has been the hallmark of David Stearns-built teams ever since he took over as the lead decisionmaker for the Milwaukee Brewers. To this point, the executive has proven capable of putting the necessary pieces in place to churn out successful big league arms from a variety of sources — prospects graduated to the game’s highest level, waiver wire acquisitions, reclamation projects, overseas imports, and lower-tier free agents and trade pieces. A full variety of backgrounds will be on display in this year’s bullpen, which once again figures to be among the game’s best, led by two of the most dynamic arms in all of baseball.