Face it - most players never reach their 'potential'. It's an easy statement to throw around. In his prime, he was an all-star and the co-leader of a very exciting playoff team.
Basketball in Boston sucked from the end of the Bird Era until the beginning of the new Big 3. For a few years we were able to watch a fun, explosive offense that revolved around taking the 3. It was Jim O'Brien's philosophy and for the team we had on the court, it worked quite well. Frankly, if you think about it, you have the same efficiency if you shoot 33% from 3 or 50% from 2.
Could Antoine have been a Hall of Famer? Sure, but a lot of players 'could' have been.