The Boston Red Sox (5-6) and Toronto Blue Jays (10-12) entered Wednesday with losing records against left-handed starters. The Baltimore Orioles — the other entrant in what appears to be a three-team American League East race — haven’t used a left-handed starter all season. Perhaps realizing they’re missing out on a competitive advantage, the Orioles have shown interest in trading for left-handed starters Francisco Liriano and Drew Pomeranz.