Here's a look at the top 5 players at each position as free agency gets underway ...
Top Five Defensive Ends
Big defensive end can play on the left side in a 4-3 scheme or either end spot in a 3-4. Nothing special as a pass rusher, but an excellent run defender.
Veteran pass rusher might be best suited to coming off the bench. Had 5 sacks in 2008 despite only starting four games. Played well in the postseason.
Another big end. Ideally suited for the left side in the 4-3. Carter will turn 36 in 2009. Lacks the burst to be a top pass rusher, but handles the run well.
Played end in the Chargers 3-4 scheme. Big guy who could shift to defensive tackle for 4-3 teams.
Pass-rush specialist. Can be effective as a starter, but is most productive coming off the bench.