The A’s are back on top again, at least in the American League Wild Card standings, and they have Jon Lester to thank. The lefty twirled seven innings of one-run ball, lifting the A’s out of the loss column with a 3-1 series-opening victory over the Phillies in front of a sellout crowd at the Coliseum on Friday evening to give them a half-game lead on the Royals with nine to play.