This is based on posted lineups when available and are otherwise projected. For projected lineups, we take recent games as well as player roles into consideration. There are some cases where there are more or less than 5 players (typically 4 or 6) when it is unclear. Bench players are in descending order of projected minutes. Here are NBA Vegas Odds and Rosters/Depth Charts.
DPV=Average Fantasy Points given up at that position by the opposing team in the last 30 days adjusted based on opposing player. 100=League Average at position. 150=Opponents score 50% fantasy points than expected performance for a player at that position.