"Jamie's a veteran, and he certainly had the right to decide what he decided," said Duquette, who signed Moyer in early June and said Moyer would make three starts before the club would decide on a promotion.
Moyer did his part, going 1-1 with a 1.69 ERA and allowing just 11 hits and no walks in 16 innings while striking out 16.
But there were two issues at play. First, Duquette said, the Orioles already have two lefties in the rotation in Brian Matusz and Wei-Yin Chen, plus swingman Dana Eveland in the bullpen. And lefty Zach Britton is in Norfolk, as is right-hander Chris Tillman, who has been pitching well lately.
"We just decided as an organization we were going to go with the other pitchers that we have here," Duquette said. "We also have some depth in starting pitching at Triple-A."
The other aspect in not promoting Moyer was the timing — the Orioles had an offday Thursday and have another Monday. They want pitchers Jason Hammel and Chen to stay on regular rest. So they won't need a fifth starter until next weekend. That's why they asked Moyer to make at least one more outing at Norfolk.
"We tried to explain the timing of the two off days to Jamie and his rep," Duquette said. "But I understand Jamie's urgency as well. He wants to win as many major league games as he can."
Moyer, who has won 269 games in a 25-year career, was 2-5 with a 5.70 ERA in 10 starts for the Colorado Rockies this season before being released June 4.