It's starting to spread to the NFL. It's called the Big Nickel defense and it was originally used in the 90s by Fritz Shurmur with the Packers, and started coming back into the NFL in 2013-2014
Man, Perry Fewell used it a bunch too in the mid aughts, definitely with the Bills (George Wilson was his guy in their Big Nickel) and then with the G-Men. Just seeing it more and more now, teams drafting for it too. Hell the Giants drop Collins down as an LB on 3rd and long frequently, his old Star role at Bama.