Are mobile quarterbacks the way to go?

With the rise of young quarterbacks like Robert Griffin III and Russell Wilson, there's a debate on the horizon. How much mobility does a modern NFL quarterback need? The success of Griffin and Wilson can't be overlooked, but there's another side to this coin. While Russell Wilson and Robert Griffin add and element to a team's offense that is otherwise absent, it doesn't come without a cost. Quarterbacks that are asked to run on a regular basis must absorb hits far more often than a pocket passer. The risk for injury skyrockets because of those hits, and putting a huge investment at risk isn't something teams should be doing on a regular basis. Coupled with the risk for injury is the risk for a collapse. If a running quarterback is injured, the team is nearly required to have a backup quarterback that can run nearly as well. If the team in question lacks a mobile backup, the injury changes the entire way that offense functions. If the injury to the starti...