The Boston Celtics still have a relatively unsettled rotation. The starting unit is in a good place. They are set in stone with Kyrie Irving, Jaylen Brown, Jayson Tatum and Al Horford, but that last spot it still switching between Aron Baynes and Marcus Morris.
They play that position very differently, so Brad Stevens often uses whichever is better suited for the matchup. They have also been very cautious with Morris’ knee, and that may have lead to more responsibility for Baynes.
Right now, Morris has looked like the more impactful player.