(WIBW) -- According to ESPN's NFL Insider Adam Schefter, one name to watch carefully on the now-open Chiefs defensive coordinator front is Rex Ryan.
Ryan is currently an analyst at ESPN and has been Schefter's colleague at the network since parting ways with the Buffalo Bills two years ago.
Schefter said in a tweet that Ryan had been approached by other teams in recent seasons about defensive coordinator openings.
He also told the New York post around this time last year, "I am never going to say I wouldn't (return to coaching). I am not going to paint myself in a corner and say I absolutely would not do that, but at this time I am going to say I don't think so. That may drastically change, but right now I don't see that."
As a head coach, Ryan racked up a 46-50 record with the New York Jets and a 15-16 record with the Buffalo Bills.
He saw the most success, though, as a defensive coordinator.
Ryan previously served as Cincinnati and Kansas City's defensive coordinators for one season, as well as spending four with Baltimore.