They’ve gone through five right tackles, two right guards, two left guards and five different starting lineups. They haven’t had the same lineup for more than four games. And they haven’t had the same lineup in back-to-back games since Weeks 8 and 9.

It’s been a challenging year for the Eagles’ offensive line, which has been in upheaval since Lane Johnson’s 10-game suspension became public before the season even began.

Every time it looks like they’ve found stability, something happens. An injury. A suspension. Yes, a stomach disorder.

What's the verdict? Not great. But considering everything? It could have been worse.

With Allen Barbre slowed by a knee injury and rookie Isaac Seumalo likely to start at right tackle against the Ravens in Baltimore, the Eagles will likely start their sixth different line of the season Sunday afternoon.

And with Johnson expected to return at right tackle next week, they could very well start their seventh different line on Thursday night against the Giants.

“You have to be ready for this along the offensive line,” said Jason Kelce, who along with Jason Peters and Carson Wentz is one of only three offensive players to start all 13 games.

“It’s such a brutal position. I know we had the one year (2013) where all five guys were healthy, but that was very much an anomaly. Most teams aren’t like that.

“But most teams aren’t like us either, where you’re looking at how many people we’ve been through, especially at tackle. But it is what it is, and I think honestly the offensive line hasn’t played that bad. I think for the most part we’ve been pretty solid.”

The last time the Eagles made the playoffs was 2013 and perhaps not coincidentally all five linemen played all 16 games — Peters, Evan Mathis, Kelce, Todd Herremans and Johnson.

The Eagles are 5-8 and headed nowhere, out of the playoffs for a third straight year, without a playoff win for an eighth straight year. The offense is muddling along, with just 15 touchdowns in the last 10 games.

The offensive line has not been great, but considering everything it could have been a lot worse. Not many teams are forced to use two rookies on the O-line — one of them at two different positions.

If nothing else, we’ve learned the Eagles have better depth on the offensive line than in past years.

“I credit that to (offensive line coach) Jeff Stoutland and Howie Roseman and those guys,” Kelce said. “I think we did a good job this year of making sure that we had good depth along the offensive line, improving it, so I think we’ve been in good situations and good positions.

“The guys who’ve come in, for the most part, have done a good job. They made sure we had guys that were ready to fill those rolls if they were needed and then with Stout coaching them we were able to develop them.”

With Halapoulivaati Vaitai and Isaac Seumalo, the Eagles have two promising rookie offensive linemen probably for the first time since 1999, when John Welbourn and Doug Brzezinski started and played fairly well.

Chip Kelly took Johnson with the fourth pick in 2013 then didn’t draft a single offensive lineman the rest of 2013 or in 2014 or 2015. So the Eagles desperately needed an influx of young offensive linemen. And they have two who at least have a chance to be keepers.

“I think Stout does a good job in those situations,” Kelce said. “Not only do we have the front office making sure we had a good draft, Stout does a great job bringing those guys along.

“I think it helps that he coached a long time in college, because in college you’re always trying to develop guys because you don’t have the luxury of free agency. You have what you have.

“So you really have to develop guys and he really takes it personally with each and every one of us to make sure we’re on top of it and know what’s going on, so if you have a situation — like Isaac Seumalo is going in the day before a game — he’s ready to play.”
Vaitai was a fifth-round pick but was solid in his last five starts after a rough debut against the Redskins.

“I think V kind of got thrown right in the thick of it going against Ryan Kerrigan in his first start and he struggled in the first half, but then he settled in and certainly in the rest of the games he’s settled in,” Kelce said.

“He’s a guy with great power, great athleticism, and I think he was really developing well before he got hurt with the MCL. He was getting better and better with every start.”

The bottom line is the offensive line was never the same after Johnson’s suspension.

The Eagles were 3-1, third in the NFL in scoring and averaging 364 yards per game before Johnson’s suspension.

They’re 2-7, 24th in the NFL in scoring and averaging 331 yards per game since.

“Even though the guys who’ve gone in at right tackle have done a great job, Lane Johnson is a special guy, so it has hurt us a little bit not having Lane,” Kelce said.

“The guys have done a great job in his absence, but in my mind, before he was suspended, he was playing at a level that was really one of the highest in the NFL.”

What about the future?

Really very little is settled along the O-line.

Peters has been solid this year but turns 35 next month and has an $11.2 million cap hit in 2017 with just $2 million in dead money if the cap-strapped Eagles release him.

Barbre is versatile but he’ll be 33 this summer and is essentially a journeyman.

Kelce has not had a consistent year and his starting spot or roster spot is certainly not guaranteed moving forward (see story).

Over at right guard, Brandon Brooks’ career is certainly clouded by his recent issues, which have caused him to miss two of the last three games (see story).

And Johnson is one more positive test away from a two-year suspension.

So there isn’t one spot on the offensive line that is truly settled going into next year.

What does the future hold?

“Who knows,” Kelce said. “I try not to look too far into it. I think right now this team in general, there’s a lot of positives going on for the future. I think the offensive line has done a pretty good job this year as a whole.

“But beyond that? We have the Ravens on Sunday and that’s all I’m thinking about.”