What do you think of San Francisco defensive coordinator DeMeco Ryans as the next head coach of the Arizona Cardinals? Ryans has received an interview request from the Cards along with the Broncos, Texans and Panthers. The Niners defense surrendered the least amount of yards and points in the NFL this season. #cardinals #arizona #arizonacardinals #azcards #azcardinal #nfl #nflfootball #nflnews #nflcoaches #demecoryans #demeco