This isn't the right draft to be looking for pass rush help.
Only the Texans are assured of adding an elite pass rusher, should they choose to take Jadeveon Clowney first overall. After that, there is likely to be some jockeying to get either Khalil Mack or Anthony Barr, the only two potentially top-shelf pass rushers in the draft.
There isn't a pure rush linebacker who necessarily will be an improvement over the Eagles' two outside backers, Connor Barwin and Trent Cole. It's a draft of tweeners. Defensive ends like Kony Ealy and Dee Ford won't fit Philly's 3-4 front, Ryan Shazier is a better all-around linebacker prospect than a full-time rusher and Trent Murphy lacks the athleticism to play for Kelly.
Two possibilities the Eagles could be targeting on Day Two would be BYU's Kyle Van Noy and Georgia Tech's Jeremiah Attaochu. In the middle rounds, they might consider Texas' Jackson Jeffcoat or South Florida's Aaron Lynch. All have holes in their games, but they might be able to bring the heat and play at Kelly's tempo.
Shazier likely will be the best of the outside linebacker prospects on the board at No. 22. If he's there, he's the kind of backer who can stay on the field in every down and distance situation. He just won't be the pass-rush specialist that the Eagles could use.