15 losses in a month, most ever in 68-year history. A tanking we will go.....
I'd say the month Len Bias died was the worst month in Celtics history.
These losses are a means to a worthy end.
As for contraction, I agree that will never happen. But perhaps some kind of system (similar to what Bill Simmons has suggested) where the teams at the bottom compete against one another toward the end of the season, for something worth winning, a system that somewhat mimics a 2nd division / relegation system, would be good to have.
The biggest problem with the NBA at the moment is that each season there are 12-14 teams (at least) that have nothing to play for except lottery balls, and that actually makes losing a better thing than winning. The league may never really be able to create much parity, but it could at least make things more interesting for fans of teams not currently near the top.