Here are the 5 skills that set serial entrepreneurs apart from everyone else. Based on these one can predict with 90% accuracy who will become a serial entrepreneur:
1) Persuasion (get others to say yes)
2) Leadership (get others do do stuff)
3) Personal accountability (takes charge and takes responsibility)
4) Goal orientation (works toward something specific)
5) Interpersonal skills (can connect enough to do the other ones)
Of course those who succeed are different from others in the speed with which they implement new decisions.