With elders Paul Pierce, Kevin Garnett and Jason Terry not taking part in yesterday’s practice for preservation purposes, the focus was even more on getting newcomers Terrence Williams, Jordan Crawford, D.J. White and Shavlik Randolph immersed in the Celtics program.

And while much of the process deals with committing offensive and defensive schemes to instinct, the four must also adapt to the general attitude that permeates the club.

“Guys have to understand how we do things around here,” Avery Bradley said. “It’s real important. (Coach) Doc (Rivers) stresses it every single day. I’m pretty sure when they step in this locker room they know right away we’re a family. Everybody wants to see each other do well. There’s a certain way we play basketball, and we all play for each other.

“It makes us the team that we are. Nobody cares who scores. We just go out there and play.”

With Rivers absent so he could watch his son Jeremiah play for the D-League’s Maine Red Claws, assistant coach Armond Hill ran practice (an open session for people from Harvard Pilgrim Health Care) and spoke about the overriding philosophy.

“The tone is set by Doc and the tone is set by how we practice, and KG is one of the leaders of, when we step on the floor, we go to work,” Hill said. “Doc doesn’t have to say anything. He doesn’t have to say, ‘We play this way.’ It’s a feeling, and you can see. What I like is the other day someone fell on the floor and got knocked down, and I saw Jordan run and pick him up. Well, that’s how we do things. KG and someone else ran to pick him up, and Jordan was right there with them. It’s an understanding of how we play, how we share the ball, how we share defense. I think they pick it up.