Top lineups according to Net Rating (that have logged more than 80 Minutes):
1 - +34.8 - ATL - Capela-Bogdanovic-Collins-Huerter-Young
2 - +30.7 - MIN - Beverley-Russell-Towns-Vanderbilt-Edwards
3 - +28.0 - NYK - Rose-Gibson-Burks-Toppin-Quickley
4 - +17.7 - UTA - Gay-Conley-Gobert-Clarkson-Ingles
5 - +17.7 - BOS - Horford-Schroder-Smart-Tatum-Williams
6 - +17.5 - BOS - Horford-Smart-Brown-Tatum-Williams III
7 - +16.8 - UTA - Conley-Gobert-Clarkson-Ingles-Paschall
8 - +16.3 - PHX - Paul-McGee-Crowder-Booker-Bridges
9 - +15.6 - CLE - L. Markkanen-Allen-Garland-Stevens-Mobley
10 - +14.6 - IND - Turner-Sabonis-LeVert-Brogdon-Duarte
I reversed the sorting to see what the worst lineups are; Boston’s Horford-Schroder-Smart-Tatum-Williams III has the #3 worst lineup with a -19.9 behind HOU and OKC lineups. It is Boston’s 2nd most used lineup.
Of the teams with a better record than the Celtics, only Dallas, Charlotte, and Philadelphia have used a lineup with a double digit negative NETRTG.
My conclusion with the stats and performances is Udoka. You can swap this one for that one, but until Udoka becomes a good coach or is replaced by one, this .500 team will be the result.