Wilson said he appreciates Hertl's love for the game and expects him to only get better as he matures.
"I don't think I'm going to put a limit on [how good he can get]," Wilson said. "He's a big, strong guy with good puck possession. All the things he does are consistent with what we thought when we drafted him (17th in 2012). He has high expectations of himself, and when you see that smile on his face, it's contagious."
Hertl had 202 shots on goal, a plus-16 rating and led San Jose in faceoff win percentage (56 percent) this season. He was asked if he prefers playing left wing or center.
"I like both; I don't really think about it too much," Hertl said. "The coaches put me in a position to succeed whether it be at center, left wing or right wing. I know when playing center you have to concentrate a bit more in the defensive zone, but I'm ready for whatever challenge the coaches give me."
Wilson said he likes the fact Hertl always seemed to come up big in tough situations.
"He knows when to step up and we missed him when he was out against the Penguins in the Stanley Cup Final, there's no doubt about that," Wilson said. "He'll be 100 percent for next season and is training hard already. He loves to play and we're proud to have him part of this organization."
Next on Wilson's wish list is signing pending restricted free agent forward Matt Nieto and defenseman Dylan DeMelo.