Age can be a sensitive subject, even in the NFL. Especially in the NFL, where a couple down seasons past age 30 can leave even accomplished players on the outside.
Teams try to find the right mix of youth, players in their primes and older veterans.
The St. Louis Rams, one of the NFL's youngest teams last season, signed a few players well in their 30s this offseason as they tried to add seasoning. Arizona Cardinals coach Ken Whisenhunt pointed to veteran leadership as one of the things he likes about his roster.
I've gone through NFC West rosters to see how many players in their 30s each team employs. The numbers were about what I would have expected.
Arizona (13): punter Ben Graham 36, defensive tackle Bryan Robinson 36, kicker Jay Feely 34, snapper Mike Leach 33, guard Alan Faneca 33, linebacker Clark Haggans 33, linebacker Joey Porter 33, tight end Anthony Becht 33, linebacker Paris Lenon 32, linebacker Monty Beisel 31, safety Adrian Wilson 30, tackle Jeremy Bridges 30, center Ben Claxton 30.
San Francisco (13): kicker Joe Nedney 37, tackle Barry Sims 35, snapper Brian Jennings 33, linebacker Takeo Spikes 33, fullback Moran Norris 32, cornerback William James 31, quarterback David Carr 31, guard Tony Wragge 30, defensive end Demetric Evans 30, defensive end Justin Smith 30, cornerback Nate Clements 30, center Eric Heitmann 30, safety Michael Lewis 30.
Seattle (10): kicker Olindo Mare 37, safety Lawyer Milloy 36, quarterback Matt Hasselbeck 34, guard Ben Hamilton 32, receiver T.J. Houshmandzadeh 32, guard Chester Pitts 31, receiver Deion Branch 31, tight end Chris Baker 30, defensive tackle Craig Terrill 30, defensive tackle Colin Cole 30.
St. Louis (8): defensive end James Hall 33, defensive tackle Fred Robbins 33, quarterback A.J. Feeley 33, center Hank Fraley 32, linebacker Na'il Diggs 32, kicker Josh Brown 31, snapper Chris Massey 30 and punter Donnie Jones 30.
Several other players turn 30 this season: nose tackle Aubrayo Franklin (49ers), guard Adam Goldberg (Rams), linebacker Gerald Hayes (Cardinals), kicker Shane Andrus (49ers), guard Reggie Wells (Cardinals) and cornerback Marcus Trufant (Seahawks).