The seventh and final part of out series via Yahoo! SportsThese days in the National Football League, there's so much emphasis placed on the performance of the quarterback that you wonder if he's the only player on the field.And while the offense may be the main focus for many fans these days, a team isn't going very far without a solid defense, especially when it comes to stopping the pass.

 So here's the seventh and final look of the many other positions on the field and their importance. In this instance, we'll be focusing on the top cornerbacks and safeties in the league. For as many quarterbacks as there are in the NFL, there are more defenders looking to stop them from doing what they do. And while a great pass rush can make a secondary look better than perhaps advertised, you better have some defensive backs that can cover, hit and tackle.

Here is a look at some of the top secondaries in the league (in alphabetical order). There's a little going out on a limb in terms of some of these units thanks to a few new faces. The proof will be in their play in September...

http://sports.yahoo.com/news/nfl-defensive-back-driven-league-174100683.html