With Stockton heading on the road, Bradford could join Sacramento in Fresno for its series beginning Friday. The A's want to limit his travel while he recovers from the back surgery that landed him on the disabled list retroactive to March 30.
Bradford allowed a single and recorded no outs in his short stint on Wednesday. On Monday, he threw 15 pitches, faced three batters and struck out one.
Macha said that the right-handed submarine pitcher will continue to appear in various situations until the team deems him ready to move up.
"It's been kind of laid out that he's going to do everything imaginable before he gets back," Macha said. "So he may come and pitch an inning [Thursday] to give him back-to-back days. He'll pitch two innings, a day game after a night game, all that stuff."
A quick return for Bradford could be good news for the Oakland bullpen, which has seen some inconsistencies outside of All-Star Justin Duchscherer and closer Huston Street.
Bradford went 5-7 with a 4.42 ERA last year for the A's, but he was 4-2 with a 2.65 ERA at home.
Family ties: The A's signed second-round pick Jared Lansford, the son of former Oakland third baseman Carney Lansford, on Wednesday.
The 6-foot-2 right-hander pitcher out of St. Francis High School in Mountain View, Calif., was Oakland's fourth selection and the 69th pick overall in the First-Year Player Draft.
The terms of his contract were not disclosed, but Lansford will be assigned to the A's affiliate in the Arizona Rookie League. Oakland has now signed 28 of its first 33 selections.
"I've just seen him on tape -- looks like a real live arm and I know he's played some positions, too," Oakland pitching coach Curt Young said. "He just looks like he has some real good instincts on the baseball field -- just watching him throw two innings on film."
Lansford's fastball has been clocked at 91-92 mph.
"The bloodline is there," Young said. "I'm sure he's looking forward to getting going as a pitcher and the opportunity is going to be there for him. I'm sure he's going to do well."
No place like home: Macha was flipping through his team's statistics before the game and stopped suddenly at the home and road numbers -- baffled by what he was reading.
"Try and figure this out," Macha told reporters. "I look at all these stats to try and figure out what's relevant and what isn't -- what can be corrected and what can't be. I've got a player on my team that's hitting exactly half of his home batting average on the road. How do yo do that?"
Eric Byrnes, Oakland's left fielder, entered Thursday's game batting .337 at home and .169 on the road. The number of at-bats were almost identical, though. Byrnes had 92 at-bats at McAfee Coliseum, and 89 away from home.
What's the reason for this discrepancy?
"I have no idea," Macha said laughing. "It just jumps off the page. Wouldn't that jump off the page? Fact is stranger than fiction."
Maybe it's the second games of those East Coast road trips.
"That might be it," Macha joked.
Good outing: Dan Meyer, who was part of the trade that sent Tim Hudson to Atlanta in the offseason, impressed Macha with his outing for the Triple-A Sacramento River Cats on Wednesday.
"I saw that Meyer pitched four innings real well yesterday," Macha said. "Then he was taken out of the game and the other team scored 11 runs in the next inning or two. So, he must have thrown the ball pretty well."
Colorado Springs actually tallied 13 runs in the two innings following Meyer's performance. He have up five hits and two runs in the game.
Meyer is 1-3 with a 6.04 ERA this season for Sacramento.
Quotable: "We need to let the left field zealots make more road trips." -- Macha, on Byrnes' road woes with his bat
On deck: The A's head to Chicago for their final three-game series of the first half. Oakland right-hander Kirk Saarloos (4-5, 3.94) will oppose Jon Garland (13-3, 3.29).