A weekly look at what the Philadelphia Eagles must fix:

Chip Kelly has to find a way to get Nick Foles comfortable enough to throw the ball in rhythm without feeling as if he’s about to get run over. The St. Louis Rams come to town Sunday knowing they don’t have to bring the house to get pressure.

Opposing defenses have blitzed Foles on only 16 percent of his dropbacks, according to ESPN Stats & Information. That’s the second-lowest rate in the NFL. But Foles has been under pressure on 39 of his pass attempts, the most in the NFL. Bottom line: Defenses are getting more pressure while using fewer pass-rushers, and that is affecting Foles’ confidence and timing.

Yes, the Eagles’ offensive line has been a mess because of injuries. Part of Kelly’s task is to shore things up there. It will help if right tackle Lane Johnson, back from his suspension, can step right in. That will slide Todd Herremans back to right guard, which will solidify two spots.

But the middle of the line is still an issue. Undersized David Molk is at center and Matt Tobin played left guard after missing a month with a high ankle sprain. Maybe they’ll settle into those jobs, helping to keep the pressure out of Foles’ face. If not, Kelly has to consider using veteran Wade Smith at one spot.

Either way, Kelly has to call plays and create situations that allow Foles to make quick reads, quick decisions and quick throws. A little early success will help Foles feel more confident and slow the pass rush.