Yes, but even little and mid-sized players can get rebounds- sometimes lots of 'em. Big guys can make a lot of assists. All can score, although some in much different ways, but football players never or rarely do any of the tasks asked of different positions on the team- like throw or run with the ball, cover a fast receiver or block or tackle someone.
We saw Magic Johnson, one of the best point guards in the history of the game play the center position in a key playoff game and totally dominate.
We saw Wilt get near and over 8 assists per game for 2 years in a row when needed, while still averaging 24 points and 24 rebounds.
We saw Oscar Robertson average a triple double in his first 3-4 years combined- while scoring 30+ points!
We saw the NCAA change the dunking rules for Lew Alcindor (Jabbar) and watched him develop an unstoppable hook shot.
No doubt, Jordan was among the best of the best, especially at the end of close playoff games. He dominated his era and put up some great numbers. 6 rings is amazing for that era, but Jabbar got 6 and Magic 5 in slightly overlapping eras.