How Welker improves Broncos

Peyton Manning throwing to Wes Welker will be a dangerous combination in 2013. AP Photo, Getty Images

The NFL is currently in the midst of an unprecedented arms race. The 2012 season saw quarterbacks attempt 17,788 passes (an all-time high) and nine teams threw 600 or more passes. With the development of the terrific crop of young quarterbacks in the league and the influx of even more QB talent from last year's draft, it is plain to see that most teams are going to have to find a way to keep up in this arms race if they want to compete for a Super Bowl.