I think they should. The MLB did it with Jackie Robinson (#42) and the NHL did it with Wayne Gretzky (#99). Players who have the number currently (LeBron) should wear it though, but I think nobody in the future should wear #23. The Miami Heat retired #23 even though Jordan had nothing to do with them. I got the above piece from yahoo sports. So, do you think the NBA should retire number 23 in honor of Jordan? From the above writing you can see that other sports have done it & Miami Heat have already done it.