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Jae C. Hong/Associated Press

The league's most coveted free agents have signed new contracts. Rookies have started to settle into their new roles as NBA players. Summer league is firmly in progress, allowing young men to take their best shots at earning roster spots.

All of a sudden, the 2015-16 season is starting to take shape. Even though it seems as if the Golden State Warriors only just lifted up the Larry O'Brien Trophy and celebrated their first title in 40 years, the world of basketball never stops progressing.

Right now, not every team's starting five is set in stone. A few players who are still available in the open market could manage to claim spots, and training-camp battles are sure to alter the order of depth charts in some fashion.

But we're far enough along now to make educated guesses about what will unfold and how each five-man unit will stack up.

It's not about name recognition in these rankings, but rather how well these starting lineups will play in 2015-16. Offensive ability helps, as does defensive prowess. Continuity is beneficial, and the same is true of any factor that can make a team better on the court.

That said, don't make the mistake of thinking these are rankings of the 30 teams in their entirety. Backups don't matter here, even though they're always huge factors in the title hunt.