I somehow have the feeling FlipS even doesn't try to find good rotations. All he does is play the starters and let them get a lead- once he feels that lead is big enough, he inserts almost the complete bench and with the first mistake he gets afraid they could blow it up and replaces player by player.
So he doesn't bring in bench players to provide a spark or something new to the game but only to rest the starters a little bit, which is the wront attitute these days, when teams like Dallas play Terry from the bench or SA Ginobili.

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I'm a wannabe- GM, but I stand to it.