Getty Diamondbacks general manager Mike Hazen pointed to the lineup as the top priority at the deadline. The Arizona Diamondbacks have made their trade deadline priorities clear . General manager Mike Hazen wants more left-handed power and bullpen depth, but upgrading the lineup may be the bigger challenge. Arizona has gotten minimal production out of the designated hitter spot between Pavin Smith and Adrian Del Castillo . The pair has combined for -0.7 fWAR, most of it from Del Castillo’s -0.5.