
Defining rookie eligibility in the NBL
It should probably be the 12 months ENDING on the first day of the current season, just so that you are not eligible in both of your first two seasons as a professional.

Didn't Neville or Loughton return to play here after a brief and largely unsuccessful stint in Europe after college? I am not sure that should affect your eligibility either.
I like this rule:
A 'Rookie' means a player (excluding imports) who commenced their first year of professional competition at a national or international level within the 12 months immediately prior to the first day of the current NBL season, save that no player will lose their rookie status just because they have logged less than 100 minutes of court time while a Development Player in the NBL.
The 12 month rule allows someone to still be a 'Rookie' so long as they are in their first year of professional competition (NBA or otherwise) at the time the NBL season starts. A Rookie is after all a person in their first year of professional sport.
100 minutes is more than sufficient for the DP rule, as they can only suit up in half the games anyway.
