The Eagles could promote from within.

The Philadelphia Eagles will have a new offensive coordinator and quarterbacks Coach in 2018.

Former Eagles OC Frank Reich is now the new head coach of the Indianapolis Colts. Former Eagles QB coach John DeFilippo is now the new offensive coordinator of the Minnesota Vikings.

Given their Super Bowl success in Philadelphia, Reich and Flip were bound to leave eventually. That’s just the nature of the business. Here’s wishing them well ... except when they facing the Eagles, of course.

Now that Reich and Flip are gone, who will the Eagles hire to replace them? Let’s take a look at some of their options.

EAGLES OFFENSIVE COORDINATOR JOB

INTERNAL OPTION: DUCE STALEY

The early buzz is that the Eagles could promote Running Backs Coach Duce Staley to Reich’s old post.

This wouldn’t come as a surprise since the Eagles value Staley. He survived both Andy Reid’s firing in 2012 and Chip Kelly’s firing in 2015 to remain on Philadelphia’s coaching staff. The Eagles actually gave Staley an interview for their head coaching vacancy before hiring Doug Pederson in 2016.

Staley played in Philadelphia from 1997 through 2003 before finishing his playing career with the Steelers from 2004 through 2006. Then he first joined the Eagles’ coaching staff as a special teams quality control coach in 2011. In 2013, he was promoted to his current position of running backs coach.

Staley doesn’t have a TON of experience but it’s not like the Eagles are counting on him to call plays. That’s Pederson’s responsibility.

Another benefit of promoting Staley is that it prevents the Giants from hiring him as their OC. Pat Shurmur still needs to fill that position in New York.

EXTERNAL OPTIONS: MIKE SHULA, JIM CALDWELL, DARRELL BEVELL, BEN MCADOO

Shula and Bevell were fired from their offensive coordinator jobs with the Panthers and Seahawks, respectively, this offseason. Caldwell and McAdoo are former offensive coordinators who were fired from their head coach jobs in 2017.

These retreads offer more experience than Staley. And the Eagles have connections to all of them. Shula was an assistant to his father, Don, when Pederson was on the Dolphins’ roster in 1992. Caldwell coached the Ravens’ quarterbacks and became offensive coordinator when Joe Douglas was still in Baltimore from 2012 through 2013. Pederson was on the Packers’ roster when Bevell was a quarerbacks coach in Green Bay. And McAdoo was reportedly the Eagles’ preference over Pederson before he decided to stay in New York (thank God).

If the Eagles feel like Staley isn’t ready for the OC job, they could consider these outside options. I’d think Staley has a better shot than these guys do, though.

EAGLES QUARTERBACKS COACH JOB

INTERNAL OPTION: MIKE GROH

On Friday, Jeff McLane tweeted: “Expect the Eagles to move WRs coach Mike Groh to QBs coach.” So there’s already talk this could happen.

The move would make sense because Groh has experience with the quarterback position. He played QB in college and then served as Virginia’s quarterbacks coach from 2003 through 2005. He also served as Louisville’s quarterbacks coach in 2010. In 2016, Groh’s title with the Los Angeles Rams was “wide receivers coach and passing game coordinator.”

Groh seemed to do a good job with the Eagles’ wide receivers in 2017. Just look at Nelson Agholor’s turnaround. The sense on the team is that 46-year-old is a good coach. A promotion could be in store.

EXTERNAL OPTIONS: MIKE SHULA, JIM CALDWELL, DARRELL BEVELL, BEN MCADOO

These are the same outside names I listed for the Eagles’ offensive coordinator job. These guys might feel like a QB coach job is below them, but hey, working with Carson Wentz could be a great way to rehab their coaching stock.

REPLACING THE REPLACEMENTS

Staley moving to offensive coordinator would leave a vacancy at running backs coach. Maybe the team would move assistant offensive line/tight ends/run game coach Eugene Chung to that spot if he wants it? An interesting outside hire to consider could be Wilbert Montgomery. The former Eagles all-time leading rusher was a running backs coach in the NFL from 1997 through 2015. He overlapped with Joe Douglas in Baltimore from 2008 through 2013. At 63 years old, Montgomery might be done coaching in the NFL.

The early scuttlebutt is that offensive quality control/assistant quarterbacks coach Press Taylor could replace Groh at wide receivers coach. Taylor turned 30 years old in January, so he’s pretty young. He’s never formally worked with receivers since first getting into coaching back in 2011.

One under-the-radar name on Philadelphia’s staff to keep an eye on is Trent Miles. Shortly before the 2017 season, the Eagles hired him to work with quarterbacks . His official title is listed as “coaching assistant.” Maybe he’s in the mix for the QB job? Maybe he replaces Groh or Taylor’s vacant spot? Miles does have a wide receiver background. Something to watch.

PREFERENCE

So what SHOULD the Eagles do? I think promoting Staley and Groh is fine, although I think Shula or Caldwell could be interesting options for QB coach. At wide receiver coach, I’d prefer the Eagles to go with someone a little more experienced than Taylor. But if they feel strongly about him, great. I just worry that the Eagles could be valuing their own guys a little too much. Some outside perspective could be nice. Bringing in Montgomery to replace Duce would be cool, although I don’t know how realistic that is.

HOW MUCH DOES LOSING REICH AND FLIP MATTER?

It definitely matters. They certainly contributed to the success of the overall offense and the individual success of 2017 MVP candidate Carson Wentz and Super Bowl MVP Nick Foles.

With that said, the Eagles still have Wentz in place. He’s a stud in his own right. And the Eagles still have Big Balls Doug calling the plays. That’s encouraging.

It’s boring to say we won’t know the true impact of losing Reich and Flip until we see it in 2018, but it’s true. For now, the Eagles will do their best to fill their vacancies. As I’ve said numerous times by now, this organization deserves some benefit of the doubt based on their ability to hire good assistants in the first place.