Glen "Big Baby" Davis isn't ready to give up on first-year head coach Joe Mazzulla just yet... telling TMZ Sports if the Celtics are able to come back and beat the Heat and advance to the NBA Finals, he deserves to keep his job.
We got Davis out at LAX just hours before Game 5 of the Eastern Conference Finals tips off at the TD Garden in Boston ... and the NBA champ said Mazzulla's future with the team is contingent upon whether or not he can rally Boston from down 3-1 to beat Miami in the ECF.