When teams flip managers, they often embrace the opposite personality of the previous boss. While Black was laid back, Murphy's reputation is no-nonsense.
Is that what the Padres need after dropping four of their past five games?
"Time will tell," said closer Craig Kimbrel, after taking the loss on Tuesday afternoon. "But it was great to hear from him this morning. He gave us an idea of who he is and how he likes to manage and what he expects from us."
The Padres showed they were willing to be more aggressive on the bases.
Clint Barmes executed a safety squeeze in the fourth inning, which scored Justin Upton. In the fifth, Melvin Upton Jr. forced A's starter Scott Kazmir into a balk when he attempted to steal home.
"I think everybody is on board, we're excited," Kimbrel said. "We played a great game today. We just came out on the wrong end of it."
But Murphy spotted enough right to be upbeat about the future.
"I'm confident in what I saw in just the first glimpse," Murphy said. "It will be a struggle, but I'm confident that we can move the needle."
That effort could translate into the fourth-place Padres advancing in the National League West.
"He expects this ball team to win, and we do, too," Kimbrel said. "We all know we haven't been playing the way we should all year. He said he's going to give it all he's got, and that's all we can ask."