"Changes could be in store for the Eagles' front office if Ryan Grigson leaves for a vacant general manager post.

The team has given permission to Grigson, their director of player personnel for the past two years, to interview for at least two general manager openings, two sources confirmed to Gannett Media.

The Colts and Rams have expressed interest in Grigson, who was promoted to his current post after four seasons as the Eagles' director of college scouting. He originally joined the team in 2002 as a regional scout, covering the Western region, after starting his scouting career with the Rams.

If he leaves, the team would likely consider promoting Louis Riddick, who was promoted to director of pro personnel in 2010 and just finished his fourth season on coach Andy Reid's staff.

Riddick and Grigson each interviewed for the Eagles' general manager job in 2010, after Tom Heckert left to take the same job in Cleveland, but Reid and president Joe Banner instead promoted Howie Roseman.

Riddick oversees the team's professional scouting department, evaluating NFL players for free agency and waiver pickups, along with advance scouting for Eagles opponents."