Photo: Boston Celtics/Twitter

Former NBA big man Glen Davis isn’t ready to give up on first-year head coach Joe Mazzulla just yet and tells TMZ Sports if the Boston Celtics are able to come back and beat the Miami Heat and advance to the NBA Finals, he deserves to keep his job.

“Jayson Tatum. Jaylen Brown. They better get that s*** in order, got dammit – at least a good fight,” Davis said. “We can come back. I truly believe. Miami hasn’t been good all year. They haven’t been consistent. They’re playing well right now. We just gotta get on the same level.”