WASHINGTON — The Miami Marlins believe they’ve found a recipe for success. Their three-game sweep of the Washington Nationals might be proof. The Marlins won with offensive depth Tuesday, behind standout pitching Wednesday and by winning a war of attrition Thursday. Miami was tied with the Nationals into the seventh inning — and both teams’ lone early run was heavily aided by suspect defense — before a pinch-hit RBI single by Jesus Sanchez finally gave the Marlins the lead on their way to a 3-2 win in Washington. Trevor Rogers — one of three starting pitchers the Marlins (10-8) envision as a p…
