The Arizona Cardinals core of players is heavily based in veterans. Carson Palmer will be 37 this year, Larry Fitzgerald will be 33 this month, and Mike Iupati and Jared Veldheer are 29. On the defensive side of the ball, Calais Campbell will be 30 this year, while Frostee Rucker is 32.
However, ESPN has released their Under 25 Rankings of NFL teams and the Arizona Cardinals, especially Steve Keim, have done an excellent job of creating a base of young talent for the Arizona Cardinals, as they have moved up 11 spot in the rankings from 19th in 2015 to eighth this year.