"I want to make it so Doc [Rivers] plays me every day because he has to play me every day," says the 23-year-old Davis, who is averaging 5.4 points in 18.5 minutes.
No Celtic has put more time in the gym. "I want to be an All-Star," he says.
After the Celtics won their 17th world championship last spring, Davis did not return to his home in Baton Rouge.
"I really didn't celebrate that much, maybe a week in the Bahamas, and then I started working on my game," he says. "I took a lot of jump shots. I counted them - 20,000 shots the whole summer."
Spend a day with Glen Davis and one thing becomes clear. There is no set schedule.
"I'm a spontaneous person, I'll be honest with you," he says.
In the morning, he's a tad grouchy. For starters, he missed breakfast - something he doesn't like to do.
"I have this concept," he reveals. "You've got to eat like a king in the morning, eat like a worker for lunch, and eat like a peasant at night. So I try to stick to that."
But not on this February day. He is running slightly late. It's 10:30 when he reports to the Sports Authority Training Center in Waltham, unfolding slowly out of an Acura driven by his girlfriend, Jenna Gomez. Davis suffered a concussion in December when he lost control of his SUV on an icy stretch of the Massachusetts Turnpike while heading for a game at the Garden.
"I was going 20 miles and hour and I hit ice," he says. "That's it. I was trying to get control of the car. I had my seat belt on."
Today in the gym, he has resistance bands attached to his waist and he's pulling Celtics strength and conditioning coach Bryan Doo in an exercise designed to add acceleration strength.
Doo says Davis is very motivated.
"He's the strongest guy on the team," says Doo. "People don't realize how explosive he is."
Or how hungry. Davis is down 40 pounds from his LSU days and his 289-pound frame is now mostly muscle.