That Josh Johnson remains winless six weeks into the season is a natural concern for the Marlins. Johnson was supposed to be their ace, one of the premier arms in the majors. Johnson, clearly, has not been that pitcher. But he's not the only Marlins starter starved for wins. Collectively, the five-man rotation for the Marlins ranks fifth in the majors with a 3.16 ERA. But it also ranks near the bottom in terms of the run support the lineup is providing.