There were a lot of great players that came to the NBA after the ABA-NBA merger in 1976. One who is kind of overlooked now is George McGinnis.
He played at Indiana in the early ‘70s. We’re pretty sure he left the year before Bob Knight arrived but he may have played for the General for a year.
It seems an odd match. Knight had very specific ideas about what players should be and on the court at least, McGinnis was a free spirit and maybe not as focused on fundamentals and defense as Knight would have liked.