Falcons coach Dan Quinn put edge-rusher Derek Rivers of Youngstown State through a private workout Thursday afternoon. Defensive line coach Bryant Young and linebackers coach Jeff Ulbrich also part of it. ``They are some of the coolest coaches that I've ever met,'' Rivers said of the Falcons. Rivers (6-3, 250) had 41 sacks, 56.5 tackles for loss, and 48 quarterback hurries in 49 games with the Penguins. He is projected between 2nd and 3rd rounds. ``I'm anxious to find out more,'' Quinn told ESPN regarding Rivers prior to the workout. Falcons, who just landed top free-agent defensive tackle Dontari Poe, looking for another edge rusher to pair with 2016 NFL sacks leader Vic Beasley Jr. Falcons have 31st picks in second and third rounds (63rd and 95th overall selections).