Six players with 10-plus seasons of NFL tenure, and 11 with seven years or more of league seniority, are projected as starting centers in 2012.
So the position remains one steeped in longevity, anchored by greybeards such as Matt Birk, Brad Meester, Dominic Raiola and Jeff Saturday.
But there are also 13 projected starting centers with four seasons or fewer of prior experience, and the young guys seem to really be coming on.
"(Centers) have to be both strong and athletic, and you're starting to see the position develop more, and take on more (prominence)," said Pittsburgh standout Maurkice Pouncey. "It's not the same as it used to be."