Jazz coach Ty Corbin, who has praised Hayward for contributing in other ways when his shot hasn't fallen, does not believe it's a matter of mechanics.
"He maybe rushed a couple," Corbin said of Hayward's 4-of-11 night against Boston, which included a pair of missed layups. "But mechanics-wise, other than not being ready and rushing when he gets it, his shot's good and his form up top is good. … He's just rushing. It's just a little something that clicks and you've got to get it click back. That's all."
First-year Celtics boss Brad Stevens said he believes his former star pupil will pull out of his funk soon enough.
"I wouldn't be concerned if I were you," Stevens said Monday. "His mental makeup is high level."
A day after center Rudy Gobert's car was filled with popcorn, retribution for failing to fulfill his rookie responsibility of bringing donuts to shootaround, no one around the Jazz camp was willing to take responsibility.
Corbin, Hayward and Derrick Favors all offered "no comments" and smiles.
Looking back on his rookie year, Hayward said his car never got the popcorn treatment because he "never messed up. Me and Jeremy [Evans] were the best rookies this team's ever seen."
As proof, he offered a YouTube video of he and Evans as rookies singing happy birthday to Al Jefferson at a practice in 2011.
"I haven't seen anybody beat that," Hayward said.
Favors, who played 29 minutes Monday after missing three straight games with injury, said his right hip was holding up well Tuesday.
"It feels good," he said. "It's a little sore but not too bad."