I was a little surprised when the Packers re-signed FB John Kuhn this offseason. He's coming off a Pro Bowl nod because there are very few true full backs playing in today's NFL but the Packers have been decreasing his usage over the past three seasons. The following number of snaps and run blocking rating over the past five seasons is from Pro Football Focus:Kuuuuuuuuhn! pic.twitter.com/XnWmsdEiLi— Green Bay Packers (@packers) June 16, 2015
But there's been also been a big change in his usage over the past two seasons which can be summed up as thus: Eddie Lacy. Since Lacy's arrival in 2013, the Packers have been using Kuhn less and all of sudden his run blocking rating has shot up. I don't think he's really gotten that much better as a run blocker; it's more about how Lacy's such a powerful runner that he makes his blockers look good.
At age 32, the only older player on the roster is LB Julius Peppers. GM Ted Thompson has preferred a roster full of young players for almost his entire tenure, so Kuhn has to be approaching the end of the line. He'll be playing on a one-year, non-guaranteed contract in 2015 with zero salary cap hit if he was released tomorrow. He wouldn't have been re-signed if he wasn't expected to fill the same role in 2015 as he had in 2014 (blocking, occasional short-yardage carry). But at the same time, this could very well be his last season in Green Bay so enjoy chanting Kuuuuuuhn while you can.