Jacksonville Jaguars coach Gus Bradley is excited about adding two assistants to his staff with a wealth of coaching experience.

The Jaguars officially announced Wednesday the hiring of former Buffalo Bills head coach Doug Marrone as assistant head coach for offense and offensive line coach and former Oakland Raiders assistant Greg Olson as the new offensive coordinator.

“Both possess the qualities that we want in our organization,” Bradley said. “Greg is a veteran coach that is very detailed and will work hard to develop our players on the offensive side of the ball. Doug has a ton of experience coaching the offensive line and a strong background in developing players.”

Marrone went 15-17 in two seasons with the Bills before opting out of his contract, using a clause to be released from his deal in the event of a change in ownership. The deal guaranteed his $4 million salary in 2015.

“I’m really looking forward to joining the coaching staff in Jacksonville,” Marrone said. “I had the opportunity to spend a couple days with Shad Khan, Gus Bradley and David Caldwell and was really impressed with the vision they have for this organization. Gus has done a great job of establishing the culture and developing players. I’m really looking forward to getting started.”

Olson returns to the Jaguars after serving as their assistant head coach and quarterbacks coach in 2012. He replaces Jedd Fisch, who was let go after Jacksonville’s offense struggled the past two seasons, finishing last in the NFL in scoring.

“Gus and I spent a lot of time together over the last week as I learned about his vision and the culture he has established in Jacksonville,” Olson said. “It’s easy to see that everybody in the organization is moving in the same direction and committed to getting better. We will work diligently as a staff to develop our players and play to their strengths. I’m looking forward to getting started.”