Robert Griffin III has been in the NFL for four years, was named Offensive Rookie of the Year in 2012 and appeared to be one of the most dynamic quarterbacks in the league.

But if you ask his new head coach Hue Jackson, RG3 is more of a project at this point than a franchise quarterback.

"I'm not gonna say he's raw, but he is still developing. And most young quarterbacks are still developing," Jackson told the MMQB on Thursday. "I'd give coach (Mike) Shanahan and his son a lot of credit; €”he came into the league and they fashioned an offense for him that worked for him. And I'd give him credit too, coming out of the Baylor system, without the traditional footwork you play with, he produced right away.

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"Those guys were able to mesh together a great season, but all that is in his past. It's about mastering the quarterback position now. Mastery of how to play the position is the key to his success."

Griffin has had to relearn the position after multiple leg injuries robbed him of much of his mobility. He didn't play a single snap in his final season with the Redskins in 2015 after suffering a concussion in the preseason.

Jackson has had some success getting the most out of quarterbacks, helping mold Joe Flacco, Carson Palmer and Andy Dalton. But does Jackson feel Griffin could become a franchise-type quarterback?

"That's yet to be determined," Jackson said. "Quarterbacks are made by wins. That's how a guy has to do it consistently, then he becomes a franchise quarterback. We're back in the first stages, trying to find a quarterback, then naming a quarterback, then letting him play, and over time we'll see."