For Zach Ertz, everything was new last season.
Not attending organized team activities made the transition to the NFL even more difficult.
But the second-year tight end from Stanford believes he’s light years ahead of last year.
Ertz understands what Philadelphia Eagles coach Chip Kelly is looking for as training camp progresses.
"I'm so confident this year in my abilities," Ertz told the Philadelphia Inquirer. "Last year, I was a wide-eyed rookie. I wasn't even here for OTAs. It's a completely different situation. I have confidence in myself and I think the coaches do, as well."
Ertz had a strong rookie season, catching 36 passes for 469 yards and four touchdowns.
Picking up all the little intricacies in Kelly’s high-powered offense was a major benefit as well.
The combination of Ertz and veteran Brent Celek is likely to be a one-two punch.
"The first couple of games it's probably going to be a lot of trial and error, see who gets open the most," Ertz told the Inquirer. "(Quarterback) Nick's (Foles) going to find a groove with somebody and they'll be the primary receiver. We don't really know who it is right now. We have a lot of playmakers, a lot of mouths to feed."
Celek echoed similar thoughts.
"It's tough for defenses," Celek told the Inquirer. "When you have guys that are versatile and can do anything, what do they do? Do they put a nickel in the game? Do they put an extra linebacker in? What is it?"