Interesting look at each team's earliest acquisition dates. STL and MIA were at least two teams that had their oldest tenured player in the same range as Mebane. Most had a few guys from the early 2000's to mid-2000. The list is also a little dated, since Dexter Davis is still there for the Seahawks and Steven Jackson still shows on the Rams for example. I am not sure the ratios are much different from team to team but the most tenured draft picks tell the tale for me.
Leon Washington 2010-2012 Red Bryant 2008-2013 Chris Clemons 2010-2013 Golden Tate 2010-2013
Brandon Browner 2011-2013 Breno Giacomini 2011-2013 - Gone but not forgotten.
R.I.P Les "PithyRadish" Norton 9/13/2014