Doc is. Our substitution paterns are a mess. Take a look at our Top 10 Five-Man-Rotations over at 82Games.com:
http://www.82games.com/0809/0809BOS2.HTMThe Celtics starting five play together 25% of the time. Compare that to teams around the league coached by future hall of famers (numbers account for trades and injuries):
13% Bobcats - Brown
11% Lakers - Jackson
11% Knicks - D'Antoni
10% Jazz - Sloan
Splitting your starters up allows you to keep the number of reserve players on the court to a minimum at any given time. Take a look at the second and third most frequently used units for the Celtics:
House-T.Allen-Pierce-Powe-Davis
House-T.Allen-R.Allen-Powe-Davis
Those two groups play just about as much together (10%) as other team's starters! Second team lineups like these might have worked when your first teamers were Jordan and Pippen, you had Kukoc coming off the bench, and your backup center was a 7'0" veteran named Wennington. They do not work with Tony Allen & Glen Davis.
Nobody manages personalities and the media like Doc Rivers, period. Very few coaches could have pulled a group together like he did last season, and for that he deserves credit. We will be fine if Doc learns to work his rotations better, but unless that happens, I agree that we are in need of a major bench overhaul before February.