On Monday, Lue said he was stepping away from the Cavaliers for some time to focus on his health.
"It's a stressful job," Walton said. "… You don't get a lot of sleep, you travel a lot and you're stressed all day long. It's important that coaches take time to also take care of themselves as far as health ... whether that's workouts, meditate, whatever it is. It's important that we eat right, exercise, all those things, because the life of travel and everything else that goes into coaching is probably not ideal for staying healthy.
In a statement, Lue said he had been having chest pains and other symptoms, including trouble with sleeping.