Shortage of programmers in general, and there's a critical shortage of programmers who know how to program on the Mac. They ask us to encourage anyone who wants to work for the Office for Mac team to apply to Microsoft. There simply aren't enough programmers and program managers at Microsoft who know how to write code for Macs. There are thousands of Office for Windows employees and a relative handful of Office for Mac employees. MVPs get to meet the Microsoft Office for Mac team occasionally, along with the Office for Windows teams. What follows is my own private conjecture about the situation. I suspect the problems are the result of much more mundane realities. Well, I love the conspiracy theories you have postulated.