Jim Plunkett didnt seem to age prematurely when he arrived in Oakland as a backup in 1979 and then proceeded to win two SB's in his early 30's and lead the Raiders to several successful seasons in-between but then again, Plunkett was a choir boy compared to Looney tunes like John Mutusak, Lyle Alzado, Ted Hendricks, Lester Hayes, and Todd Christiansen (probably one of the smartest, most articulate NFL players ever).