After a lackluster offensive performance Tuesday night, Dodgers manager Dave Roberts implored his team to “to have a better plan” at the plate. An afternoon later, however, the club was still searching. In a 3-2 loss to the Miami Marlins on Wednesday, the Dodgers not only dropped a three-game series to a rebuilding opponent, but raised renewed questions about their inconsistent lineup. Shohei Ohtani and Freddie Freeman went a combined 0-for-7 as the Dodgers’ offensive woes continued. AP They managed only seven hits. They went just 2-for-11 with runners in scoring positions. And despite having the bases loaded in the bottom of the ninth, they came up empty on a game-ending double-play from Freddie Freeman.  Outside of a three-run walk-off rally in Monday’s ninth-inning, they combined for only five runs in the series’ other 26 innings. Granted, on Wednesday, they were facing a former Cy Young winner in Sandy Alcantara, who scattered all seven hits over a six-inning, two-run start.…