Kansas City, Mo. ? Chiefs coach Andy Reid didn’t have to search far for his new offensive coordinators.

Try right down the hall.

Reid promoted Brad Childress and Matt Nagy to the role Thursday, just days after Doug Pederson left the job to become the head coach in Philadelphia. Childress had been the spread game analyst and worked on special projects, while Nagy had been in charge of the quarterbacks.

“I’m fired up about the opportunity to have both of these guys in that position,” Reid said, “and maintaining the continuity and stability of the offense there.”

Reid said he plans to call offensive plays, a job that he split with Pederson for much of this past season. Childress will be in the coaches’ box and Nagy will be on the field, where he will be given the coach-to-quarterback headset and have direct communication with Alex Smith.

Both assistants have long histories with Reid.

Childress spent seven seasons with him in Philadelphia, coaching quarterbacks for three years and the final four as offensive coordinator. Childress also spent five years as the head coach in Minnesota, and reunited with Reid in Kansas City after working for the Cleveland Browns.

“Feels like I never left,” Childress said. “I at least feel like I’ve seen this thing from its infancy, back when I was coaching Doug as a quarterback, how we grew this thing.”

Nagy played quarterback in the Arena League before beginning his coaching career as an intern with the Eagles. He later served as the offensive quality control coach, and followed Reid to Kansas City to work with the quarterbacks prior to the 2013 season.

Several times, Reid has called him one of the bright young minds in the game.

“I think the transition will be really smooth,” Nagy said. “Being in here with Alex and the rest of the quarterbacks for three years is a huge advantage.”

The Chiefs still have several lower-level openings on staff after assistant offensive line coach Eugene Chung and coaching assistant Dino Vasso followed Pederson to Philadelphia.