Here are four shots of his coif, roughly five years apart, so you can enjoy the evolution of L'essence de Rob.
1. We take you back to 1998, roughly six years after the debut of the always-instructional Achy Breaky Heart.
2. Here's a shot of Ryan as linebackers coach of the Patriots, which was between 2000-2003.
OK fine. Correction: Rob Ryan was Kenny Powers when he was the linebackers coach in New England. pic.twitter.com/GNSBM2CB61— Doug Kyed (@DougKyedNESN) October 13, 2013
As our Ryan Wilson noted last year, the comparison in the tweet is apt. APT.
3. Here's Rob Ryan, then DC of the Raiders in 2008.
4. And here we are in present day, where Ryan enjoys a life of Full Lebowski.
But no Rob Ryan blog post would be complete without a reminder of where we all began back in 1981. We present thee, mythological evidence No. 1.
Rex and Rob Ryan during their days playing for Southwestern Oklahoma State: pic.twitter.com/0fP3QD1u9Q— SI Vault (@si_vault) August 22, 2013
And No. 2: