RENTON, Wash. — Barely 48 hours after having a first interview on the East Coast, Seattle Seahawks GM John Schneider and Mike Macdonald sat together on a stage inside the Seahawks’ headquarters on Thursday after Macdonald was introduced as the ninth head coach in team history.

He becomes the youngest head coach in the NFL at age 36.

Schneider described his new coach as a “disruptor,” and said one of the guiding principles through the interview process was, “who is going to change the marketplace?”

“I have a different personality and you’ll get to know me, but my plan is to be myself every day. And you’re just going to get me. It’s not a facade. There’s no alter agendas or anything like that,” Macdonald said. “But it’s all about what’s the best interest for the team, what’s the best interest for the players and how we can be successful.”