NFL: St. Louis Rams at Tampa Bay Buccaneers

Sep 14, 2014; Tampa, FL, USA; St. Louis Rams head coach Jeff Fisher looks on during the first half against the Tampa Bay Buccaneers at Raymond James Stadium. Mandatory Credit: Jonathan Dyer-USA TODAY Sports

(Jonathan Dyer)

PHILADELPHIA -- Nick Foles has already doubled his interception total from a year ago and LeSean McCoy's yards per carry has been cut in half as the Eagles struggle to gain any offensive footing behind what has been a patchwork offensive line.

However, don't count St. Louis Rams head coach Jeff Fisher among those who believe the Eagles are struggling, especially since they have arrived at the season's quarter pole with a 3-1 record.

"I don't say they're struggling,t hey're potentially very explosive," Fisher said on a conference call with reporters Wednesday. "This is only four games into the season and I would be patient with it.

"They've been able to overcome an injured offensive line and they're healing up as we would all anticipate this week and that should help. Considering that they're 3-1 and could very well be 4-0, you have to be very careful seeing holes in what they're doing."

Injuries along the offensive line to center Jason Kelce and left guard Evan Mathis certainly compounded the issues created by Lane Johnson's four game PED suspension, but behind a group of lineman that are either inexperienced or playing out of position, McCOy is averaging just 2.7 yards per carry after winning the rushing title in 2013 while averaging 5.1 yards per attempt.

To make matters worse, Nick Foles has struggled to connect on the deep ball, despite already running away with the league lead in pass attempts that have traveled further than 20 yards.

Fisher though thinks that it's only a matter of time, especially with Johnson back in the fold this Sunday, before the Eagles' offense takes flight once again and when they do, Kelly's uptempo system presents a myriad of challenges.

"Obviously you talk to people every week and they probably say the same thing. It's different," Fisher said. "It's high tempo, they're well coached, they're very explosive and productive. Because of what they do often times they'll dictate and that makes it difficult to defend.

"They do a great job of getting back to the line of scrimmage and going. The defense has to communicate and our defense is used to communicating in hurry up situations. Not the entire game, but I think they've done an outstanding job with the personnel there because it compliments so well what the coach is trying to do there.

"Again, the scheme, the challenges, the different types of things the offense does with the vertical game. I don't think anyone in the league screens as well as they do and our defense is really going to be challenged."

Despite behind held out of the end zone offensively against the 49ers Sunday and only moving the ball past midfield once the entire game, the Eagles are still eighth ranked offense in the league and are third in scoring, averaging 30.1 points per game.

Fisher believes the Eagles have all of the pieces in place and said that his defense will be tested Sunday afternoon. We have yet to see the Eagles put together a complete game on the offensive side of the ball where both of the running game and aerial attack are firing on all cylinders and if that finally happens Sunday afternoon, Fisher just may be right.

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