Let's get to the links...
Caplan: 'Pessimistic' that Evan Mathis will be an Eagle this fall - PhillyVoice
It takes a long time for an offensive line to get good at blocking blitz pickups, stunts, twists, etc. The Eagles' offensive linemen will have logged no significant amount of time playing with the guys next to them. That's a problem. Not to mention, you're looking at a downgrade from last year to this year at LG, RG, and your first two backups off the bench.
A Stronger, Faster DeMarco Murray? - PE.com
Running back DeMarco Murray's 2014 workload has been well documented.