I dont know about that. I mean, I play some intense NBA 2K15, and I occasionally simulate, but not through losing seasons. If I start losing alot of games, I'll stop the simulation, see what the problem is, make a trade or two, and basically do what the celtics are doing now: acquiring good players while stockpiling assets. Losing too much in nba 2k15 kinda sucks because the player progression is too good. Get a couple of top 5 picks (coupled with the horrible drafting of the CPU), along with current player progression, and suddenly you have such a stacked team that beast rookies are riding the bench.
TL;DR: Losing alot in nba 2k15 can QUICKLY make you way too good.
sorry, kinda went off topic lol