Best-case scenario: Vikings coach Mike Zimmer has been tight-lipped about his plans for Barr, but there are rumors about a Von Miller-like role for the rookie. Barr is penciled into the starting lineup as a SAM linebacker, which would place him opposite the tight end in an "under" defense. This would allow Barr to use his hands to jam and disrupt big-bodied pass catchers at the line while also tasking him to set the edge on run plays. He could become a designated edge rusher in the Vikings' nickel package, giving the unit a dynamic defender to spice up a pass rush that will be without Jared Allen for the first time in seven years. Given Barr's athleticism and production as a pass rusher at UCLA, the hybrid role could pay immediate dividends for the Vikings.