Most significant signing: Considering the struggles at safety the past couple of seasons, Malcolm Jenkins has to be the most significant signing. Jenkins is coming off a strong season, but has been inconsistent in the past. He might not be a Pro Bowler, but he's a definite upgrade over what Philadelphia has had of late. His versatility -- he's a former college corner -- is a big plus.
Most significant loss: The Eagles haven't had a significant loss. One free agent who left was backup defensive end Clifton Geathers, who signed with Washington. But that's hardly significant -- for either team. Quarterback Michael Vick hasn't drawn a lot of attention in free agency, which suggests many teams agree with the Eagles that his career is at, or very near, the end.
Biggest surprise: The trade for running back Darren Sproles. Had New Orleans just cut Sproles, it's possible the Eagles would have lost out on him. And it's not as if he was a strong need. But Sproles was a terrific weapon to add for this offense because of his versatility -- he can line up anywhere and catch passes. His presence also means the Eagles could be creative in how they deal with other players -- a trade to recoup some draft picks perhaps? Or it could just mean they have another player defenses must worry about. He might not be the same as he was three years ago, but the Eagles don't need Sproles to be that dynamic given who else they have on the roster.
What's next? The Eagles still need more help on defense, even after also signing cornerback Nolan Carroll. The secondary in particular could be strengthened more -- perhaps with strong safety Calvin Pryor in the draft? The Eagles have added depth and key special teams players. They need to find a few players to develop into starters in the draft.