Reggie Bush grew up in Los Angeles and played at USC. His previous NFL homes have been New Orleans and Miami.

So, he's gone from Hollywood to Bourbon Street to South Beach to — Detroit. Cue the Debbie Downer music?

Not for Bush.

"I came here to work," he said Wednesday after the second of three OTA sessions for the Lions this week. "I didn't come here to vacation. I came here to win championships, to win football games, and that's what I look forward to doing."

Bush, as he will remind you, wasn't exiled to the Lions. He chose to be here, and he's not once regretted his decision.

"Some guys have been asking me, 'How was Miami? How was South Beach,'" he said. "I tell them, you know, it's nice but if the football isn't right, it doesn't matter where you are at. If your work isn't right, you are not going to be happy.

"As long as we take care of business here, this can be an amazing place. I think it has a lot to offer. I look forward to getting into that stadium and hearing those fans be as loud as ever."

Besides playing in posh locations, Bush also has played on championship teams. He played for the national title at USC and has a Super Bowl ring from his days with the Saints. Does he see anything here that resembles a championship environment?

"I see guys who are willing," he said. "I see guys that want to go out there and be great and they are putting in the work. It's just about doing the little things right. This is a league of all-stars. Everybody is talented. Everybody is fast, big and strong.

"It comes down to focusing for four quarters every game and being able to finish games out."

Bush, along with quarterback Matthew Stafford and receiver Nate Burleson, are fast emerging as the vocal leaders of the offense, if not the team. All three talked about seeing a different sense of seriousness about the team this offseason.

"We're a little more focused," said Burleson, who is participating after offseason surgery to repair a broken leg. "Everybody understands, realistically, there is a window of time for everybody in here. Coaches see it, players see it. Whether you are old, young or a rookie, if things don't shape up in the direction we need them to, there's going to be changes.

"And nobody wants that."