Despite a drastic switch at quarterback, the Miami Dolphins plan only subtle changes in their offense.

Coach Don Shula has no intention to shut down the passing game with Scott Mitchell, who makes his first NFL start next Sunday against Indianapolis in place of Dan Marino.Because Mitchell is left-handed, the Dolphins will line up in a strong-left formation more often than with the right-handed Marino. Play-action fakes also will likely be to the left, instead of to the right as before.

But the Dolphins likely will continue to throw more than run, because throwing is what they've done best for the past decade.

"I think we're better off if we don't hold back the reins," Mitchell said.

"Why change anything?" running back Terry Kirby said. "Mitch is a capable quarterback. He's not here for his looks."