"I feel younger than ever," the Steelers quarterback said Thursday.
That much is evident by Roethlisberger doing some extra jogging in when he is not running the Steelers' offense during organized team activities. Or directing a two-minute drill that ends with him firing a touchdown pass to Pro Bowl wide receiver Antonio Brown on a slant pattern, something Roethlisberger did Thursday.
The only time Roethlisberger shows his age -- he turned 32 in March -- is when the 10th-year veteran is directing an offense that is his now more than at any point of his decorated career.
Roethlisberger may not be Peyton Manning with all of the hand gestures and barking of signals, but he is not far off.
And it is only June.
No one is more responsible for an offense that came into its own in the second half of last season integrating new players and inexperienced ones than Roethlisberger.
Gone are two of his top three wide receivers from last season -- and the 1,342 receiving yards and 16 touchdowns that Emmanuel Sanders and Jerricho Cotchery combined for in 2013. The backfield has also undergone change with the Steelers signing LeGarrette Blount and drafting speedy fast Dri Archer to complement Le'Veon Bell.
Roethlisberger is charged with pulling everything together, and he has clearly embraced that responsibility while not tempering his expectations for the offense in 2014.
"I think we have a lot of speed," said Roethlisberger, who played every snap last season while throwing for 4,261 yards, the second-highest single-season total of his career. "That's running the ball, that's throwing the ball, whatever. I want us to be fast and put a lot of points on the board."
The Steelers averaged just under 28 points in the final eight games last season. Roethlisberger is the key to them building on that and he has been nothing but a leader during OTAs. Roethlisberger has been front and center at the offseason practices, missing only one of them because of a family obligation.
"I love being out here. I love the game," Roethlisberger said. "I'm excited about this team and the direction we're headed."