1 - Upload Billy Cunningham from the all-time 76ers on 2k share
2 - Trade your Barkley Cap on another team where 32 is available
3 - change his number and name to Billy Cunningham and 32
4 - Export him on 2k share
5 - Trade the real Cunningham on the 76ers
6 - Overwrite Cunningham with the saved Barkley (named Cunningham) from 2k share
7 - Re-name your imported Barkley with his correct name