Off-season DB Index: Which teams will have the top secondaries in 2015?

Which teams have the best group of defensive backs in the country? SI.com's Ben Glicksman and Colin Becht give their picks.

With the start of the 2015 season less than one month away, our breakdown of the top position groups in the country concludes with evaluations of the best secondaries. Which teams have an elite collection of defensive backs and who are the shutdown players no quarterback will want to try to throw on? SI.com’s Ben Glicksman and Colin Becht discuss the following in the video above:

• Which team has the best secondary?Clemson, Stanford and LSU led the nation in yards allowed per pass attempt last year. Who will be this year’s toughest team to pass against?

• Which individual defensive back will be the best in the nation? Who can be trusted on an island with this year’s top receivers?

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