The Green Bay Packers are one of the very best teams in the NFL, but even the elite teams have a few question marks on their roster. Some positions don't have as much talent as others and injuries can really do some damage at those spots. So where can Green Bay least afford a rash of injuries? It's a question that was posed to ESPN Packers reporter Rob Demovsky in his weekly mailbag.

#Packersmail Injuries often cripple the best of teams. What Positions are at the biggest risk to having a major impact on this season?

— Brian Harstad (@HardyInSconny) June 11, 2015

"We're actually seeing it a little now in organized team activities with the foot injury that has cornerback Casey Hayward out all offseason," Demovsky wrote. "With Tramon Williams gone, Hayward seemed like the most likely replacement. But OTAs opened with Demetri Goodson in that spot. Goodson did not play a single snap on defense as a rookie last year. And there's the two rookies - first-round pick Damarious Randall and second-rounder Quinten Rollins. Both have the potential to step into that spot, but neither, obviously, is proven. How scary would it be to open the season with a player who has never taken a regular-season snap on defense as one of the starting cornerbacks? At this point, injuries at that spot could be problematic unless the two rookies are ready to play right away."

The Packers begin the season against the Chicago Bears and then host the Seattle Seahawks in Week 2. Facing off against Alshon Jeffery and Kevin White and then trying to contain Marshawn Lynch and Russell Wilson will not be an easy task for their defense, prepared rookies or not.