Leading into the NFL Draft starting Thursday, April 25th, the Star Tribune will assess the Vikings roster, draft history and college prospects during this eight-part series. No. 8 need: QuarterbacksNo. 7: Running backsNo. 6: ReceiversNo. 5: LinebackersNo. 4: Defensive backsNo. 3: TightendsNo. 2: Defensive line Coordinator Kevin Stefanski said as much as can be expected from NFL coaches or executives this time of year when, in January, he swiftly pinpointed two primary areas of focus for the Vikings.