Well, assuming they really are the same person, they need to be merged. You might as well propose the merger (go to the bottom of one of the profiles and propose it per the directions.) You may want to first adopt the profile which has no PM. Proposing it will let the other PM check things out and accept or not the merge. When the surname of the two profiles are the same the system will automatically keep the lower numbered profile but the information in the other profile will be maintained, so clean-up will need to be done when the merger is complete.