120 minutes over the course of a season is a teeny tiny sample size. Even if you take into account that 5 man line up for 120 minutes, that's 600 minutes out of a team total of 18,845 minutes, so like 3% of the season. I won't bother to do ent a dozen examples of how bad McDermott has been-- RAPTOR, EMP, on/off +/-, etc... I'm sure you've seen them already and chose to ignore them. The Net Rating using ORtg & DRtg is an estimate of points produced and allowed. It's not the same as +/-, which accounts for the actual points scored and allowed while players are on the floor. This is why a player or team can have a positive rating but a negative result on the floor or vice versa. Devontae Cook has a very skewed team best net rating of +40. Keldon Johnson is -1.0, Dejounte is + 5, Poeltl is +13, and McDermott is -5. The Phoenix Suns have the best record in the league and their "best" 5 man line up has Paul, Crowder, Booker, Bridges, & Ayton playing 156 minutes over 8 games, with a net rating of +3.2... so they're not quite as good as the Spurs?