For example I looked up Kenyon Martin today. I remember him being an all-star so I figured he must have had multiple 20/10 seasons. Turns out he never averaged more than 17 ppg and only got 10 rpg one season.
Muggsy Bogues surprised me positively. I thought he was just a role player like Early Boykins. Turns out he had several seasons averaging over 8 apg and a couple seasons averaging over 10 apg.
Interestingly, he never made an All NBA Team, even though he finished second in MVP voting in one year.
Making All NBA as a center back then was tough, with just two teams and guys like Wilt and Russell always taking a spot or two.