Given the considerable clarity of hindsight, it’s fair to say Ben Cherington could have been more aggressive in the offseason, particularly with regard to the outfield, to give the Red Sox a better chance of defending their World Series crown. But that’s a discussion for another day.

For now, there isn’t much the general manager can do.

Seven weeks shy of the July 31 trade deadline, there typically aren’t deals to be made. The buyers far outnumber the sellers, most teams not yet willing to admit to their fans that they’re throwing in the proverbial towel.

And so, one night after the Red Sox looked listless in being shut out for their sixth loss in seven games, Cherington came here before Brandon Workman pitched them to a 1-0 victory over the Orioles and, for the second time in two weeks, issued a public vote of confidence to the players who are already on the roster.

“We’re going to get, hopefully, our core lineup out there most consistently moving forward, and we believe in that core group of players,” Cherington said. “We believe we have a lot of wins in us with that core without adding to it.”

In other words, it’s up to the Red Sox to determine Cherington’s course of action before July 31. Climb back into the race, and there might be help on the way once trade season begins. Continue to fade, well, it’s never too early to plan for 2015.

The Red Sox showed more fight last night, even if the offense continued to sputter. Workman shrugged off the disruption of two rain delays totaling 93 minutes and took a no-hitter into the sixth inning.

And when Workman yielded after 67 pitches, relievers Andrew Miller, Junichi Tazawa and Koji Uehara combined to record the final seven outs and make sure Mike Napoli’s third-inning RBI single held up as the decisive hit.

Baltimore put the tying run on base in the ninth against Uehara, who came to the majors with the Orioles in 2009 and still lives here. But Uehara struck out Nick Markakis and Manny Machado to preserve the victory.

Relying heavily on his bending curveball, Workman retired the first 13 batters before Nelson Cruz drew a one-out walk in the fifth inning. There were two outs in the sixth before No. 9-hitting Ryan Flaherty lined a single to center field, breaking up Workman’s longest no-hit bid since his first career start last July 14, when Oakland’s Coco Crisp led off the seventh inning with an infield single.

It was the only hit allowed by Workman, who was lifted after 62⁄3 innings. Despite the low pitch count, the Red Sox likely were being cautious by not pushing him too far.