I suspect we will see more details emerge very quickly, but it is being reported by ESPN's Jeff Goodman that Chew has taken a job with Billy Kennedy at Texas A&M:

Texas A&M's Billy Kennedy will hire Virginia Tech assistant Isaac Chew, sources told ESPN.— Jeff Goodman (@GoodmanESPN) May 13, 2016

Chew's name has come up in a number of coaching searches, so this is not entirely unexpected. He's been a hot commodity for a while. It's unfortunate to see him leave, especially given his strong relationship with Buzz. I would have expected Chew to move on if a head coaching spot opened up. We'll have to see what his new position is with A&M.