they've actually only done that once so far, for a 5:22 stretch with irving/waiters/dellavedova around the perimeter, and it's easily been their best lineup. one of the few that actually outscored the opponent, with by far the highest net plus-minus (+29 pts / 100 poss) of their most-used lineups, and pretty much unstoppable offensively (94.4 eFG%, 154.5 off rtg)
yeah, it was abysmal defensively and fouled like crazy, but that's no different than any of their other groupings. at least that one put up points in bunches, which is how they're gonna have to beat teams anyway. it's something they can and will tweak and work into the gameplan in doses.
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it is a capital mistake to theorize before one has data. insensibly one begins to twist facts to suit theories, instead of theories to suit facts. - sherlock holmes