People, how did Vlad (the Impaler) of Romania, hold out against a vastly superior Ottoman Empire army?
It was psychological terror, he had countless Ottomans captured and impaled on the roads. And thus, many Ottoman divisions were terrified of even engaging him in the open battle field, once they'd seen what their potential future could be in gory detail.
And likewise, right now, the Cav's are feeling like the confident Ottoman armies, knowing perfectly well that the Sultan's watching their backs.
But then, with many of BS's schemes and switches, they'll have every possession in games 1 and 2 contested. Then, with James demanding the ball, again and again, his teammates will lose focus and start to feel like that they're not that great of a team, as they'd originally anticipated.
And finally, you'll see it, the other 4 Cavs will be standing around, waiting for James to complete the play. The last 4 games will be pure hero ball, with them winning 2 during a few hot shooting streaks.