Demarcus Van Dyke is fastest in 2011 
Defensive back workouts always produce some of the best 40-yard dash times at the NFL combine, and 2011 is no different.
How fast was the best 40 time at the 2011 combine? Which other prospects landed in the top five among defensive backs? And who are the DBs that stood out for reasons good and bad during position drills? ESPN Insiders get all the answers. 
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Todd McShay (left) is the director of college scouting for Scouts Inc. McShay, who played quarterback at Richmond, has been evaluating NFL prospects since 1998. Follow Todd on Twitter: @McShay13
Steve Muench (middle) played guard at Richmond and worked in the athletic department there and at Boston College before joining Scouts Inc. in 2002. Follow Steve on Twitter: @SteveMuenchESPN
Kevin Weidl (right) is a former quarterback for Indiana (Pa.) University who worked in the pro scouting department for the New York Jets before joining Scouts Inc. in 2007. Follow Kevin on Twitter: @Kevin_Weidl
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