Celtics stave off elimination with Game 4 win. Can they do the improbable?

The Celtics will live to fight another day, staving off elimination with a win over the Miami Heat in Game 4 of the Eastern Conference Finals.

Could they become the first team ever to come back from a 0-3 deficit? Could major changes be on the way if they don't? Radio Boston talks it over in its last Celtics roundup of the season.