There's an article on the official website today talking about had Dermontti Dawson revolutionized the Center position. There really wasn't a lineman playing during his era that could pull and get out in front of the Full Back, let alone the Running Back and make the blocks to spring him. It's even more difficult playing Center having to snap the ball and then get out and start running.
Pouncey was awesome in 2010 but in 2011 he barely saw the field with any consistency in the 2nd half of the season. He had ankle surgery earlier this month which will hopefully fix that problematic ankle. If it does the sky is the limit but you wonder how he'll be ranked in the next 5-10 yrs against the great Centers the Steelers have had.