My thoughts are about to explode in my pants.
Seriously, though, it sounds like he has something to prove:
http://www.nj.com/giants/index.ssf/2016/01/what_has_potential_giants_assistant_mike_singletar.html
He'd have instant credibility within the locker room because of his accomplishments as a player. And frankly, given how Reese likes to bargain shop for linebackers, they are going to need a lot of coaching.