There are several sensible reasons for the bj-league to adopt the NBA's six-personal foul disqualification rule. And by doing so, Japan's upstart pro circuit would be increasing the number of personal fouls it permits by one.
For starters, there's been an influx of new referees, new players, new coaches and new teams every season since the bj-league was established in 2005, and one extra foul would give players — stars, career backups, and everyone in between — additional opportunities to do what they're paid to do: play ball.
It would also eliminate some of the depth-related problems some teams, especially the Takamatsu Five Arrows, face on the road, when they may travel with only eight or nine players. And in a game when a lot of fouls are called, including contests that go into double or triple-overtime, the number of available players can be slim pickings.