Air Force in no rush to name new defensive coordinator

Air Force likely will enter preseason camp -- and possibly the 2018 season -- without an official defensive coordinator.

The team hasn't named a coordinator replacement for Steve Russ, who left in January to become the Carolina Panthers' linebackers coach. Russ had spent the previous four seasons as Air Force's defensive coordinator and defensive backfield coach.

Falcons head coach Troy Calhoun, speaking Tuesday at a panel lunch for Colorado's college football coaches, said he's not sure whether he'll name an official coordinator, noting he's under no obligation to do so. Calhoun told ESPN.com on Tuesday night that the overall experience of the defensive staff and its ability to collaborate…