BOSTON — One day after CEO Sam Kennedy gave the Boston Red Sox an ultimatum of sorts — if they don’t turn a corner soon, they’ll be sellers at the trade deadline — the Red Sox scored their most runs in a game at Fenway Park all season. Coincidence? We’ll see.In a seesaw season full of false starts, it’s tough to assume they’ll build on Friday’s commanding 10-1 victory over the Texas Rangers, who entered the day having won nine of their last 12 games.The Red Sox have lost the benefit of the doubt, and there’s plenty of that hanging around Fenway.But they also don’t need Kennedy’s motivation.As the calendar ticks into mid-June, this might be their last chance to prove they can survive in a middling American League playoff picture.“Regardless of if Sam said it or not, I think the urgency is there,” interim manager Chad Tracy said before the game. “We’re not playing good enough. I think all baseball players know, as the calendar continues to move along, if you don’t start to get it right, that always becomes a possibility. I think the guys are very well aware of, regardless of him saying that or not, that we have got to play better.”After a three-game sweep at the hands of the Tampa Bay Rays this week, one in which their top four hitters went 0-for-11 with 11 strikeouts, the lineup looked like a different group Friday, scoring a season-high 10 runs at Fenway and reaching double digits in runs scored for just the third time this season.“It was awesome,” Tracy said. “From the first inning, just a very, very consistent attack, one through nine. So, it was really nice to see.”In yet another effort to jump-start the offense, Tracy moved journeyman Mickey Gasper to the leadoff spot to capitalize on his hot stretch at the plate since he was called up May 7. Gasper served as designated hitter, playing in his 25th of 28 potential games since joining the club. In that stretch, he’s hitting .271, but more importantly, he is seeing pitches and lengthening at-bats, a reason Tracy inserted him up top.