1. I think they should add fouls in OT games. I can see having a limit on fouls, but I've seen 2OT and 3OT games decided because too many key players foul out. How about one extra foul per player per OT?
2. Each team should be allowed an injury time out to be used if needed. Most times it won't. But a player tears an ACL and has to be carried off the court - bad enough, a team should not have to use up 2 time outs to get him to the locker room. Obviously, this has to be monitored to be sure it's not abused, some flopper falls on the ground so his team gets another time out, then bounces up right as rain.
3. Very limited requested instant replay. Make it like the NFL, where a team gets no more than 1-2 challenges per game and loses a time out if they lose the replay call. In close games, a 3 called a 2 by mistake or vice versa can be huge.
Damn, we're smart! Mr. Stern, please phone in for suggestions.