Possible Clues:

• Degrees held by some CTOs
• Degs. of many boardroom figures
• Degrees for some 45-Acrosses
• CEO degs
• What many 3 Down have
• Degrees held by some CEOs
• Degs. for C.E.O.s
• Degs. for Lisa Leslie and Melinda Gates
• Many suits hold them
• Some CEOs' degrees