Last season, I had a 4 player rotation at PG/SG/SF. The guards were each combo guards under 150k, the SF was 60k. Their JS/JR was 18/12, 18/13, 17/15, and 15/7. All four shot over 30% from 3, and three of the four had a FG% of 46%. The guard with 15 JR shot 38% from the field.
Unless the NBBA had an OD deficit I'm unaware of, it's very possible to build a competent outside team in a top division without spending an exorbitant amount on salary.
Then again, I don't know many teams that could match my OD that season
(55952654), so perhaps the solution is to fight fire with fire. If the complaints about 2-3 are any indication, OD is just as important against inside offenses as it is against outside oriented teams.