Robert Griffin III doing his rehab during Thursday’s OTA at Redskins Park (John McDonnell/The Washington Post)

Coach Mike Shanahan was noncommittal on whether the Redskins’ offensive system will be adjusted next season to minimize the injury risks for quarterback Robert Griffin III.

“We really don’t know what defenses are going to do to us,” Shanahan said following Thursday’s offseason practice, known as an organized team activity, at Redskins Park. “I can’t tell you for sure. You adjust the game plan during the game. Defenses are going to be more ready for different things we did last year. And we’ll be able to adjust.”

Griffin’s father said this week he would like to see his son throwing the ball more often and running with it less frequently.

Shanahan reiterated his view that the option-style elements in the Redskins’ offense help to keep Griffin healthy by slowing down the pass rushes of opposing defenses.

“Remember, the zone read probably gave Robert more time in the pocket than anything you could do in the National Football League,” Shanahan said.

Shanahan said he plans to do what’s in his prized young quarterback’s best interests.

“We’re going to try to protect Robert as much as we can,” Shanahan said. “We’re going to let him do the things that we think he does the best, and hopefully it’ll be as productive.”

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