For the first time in years San Diego quarterback Philip Rivers must learn a new offensive system with new terminology new calls and new reads and people say that may be good.

I don't. I say it's downright necessary.

And here's why: Philip Rivers is in a position not all that far removed from where Kurt Warner was when he first went to Arizona. He's won playoff games. He's been to Pro Bowls. And he's thrown for a gazillion yards.

But like Warner then he's been victimized by a shortage of playmakers and an abundance of sacks -- both of which combined to produce too many mistakes and not enough victories.Yet Warner recovered bouncing back under a new system that included new terminology new calls and new reads and run by the same guy now in charge of San Diego's offense -- former Arizona head coach Ken Whisenhunt.

What he did for Warner was jump-start his career through exercises that were as much mental as they were physical. He sharpened his focus by throwing something new at him and it not only cleaned up his errors; it got him back to become one of the game's top quarterbacks.

Warner needed that then. Rivers needs that now. And this is his chance.

"I think it can be a good thing" Rivers said after Thursday's first day of training camp "because of the newness of the terminology the system and the verbiage ... and the challenge of all that.

'This offseason was definitely different than I've had for awhile for that reason. I knew the other offense because I'd been calling it for nine years. But now it's kind of like 'Man I've got to bear down to call the play to call the coverage a little bit different ... just to be able to speak in the meeting room.' And that's been good."