Wednesday was Michael Wallent's last day of work at Microsoft. Not because the fast-rising executive, previously responsible for the Internet Explorer browser, quit, or was fired. Nothing of the sort. Rather, on Monday, he'll begin a course of surgeries that will allow him to return to his job in January as Megan…

Michael Wallent, a general manager at Microsoft, will return to work in January as Megan Wallent. He came out to colleagues as transgender last month, first in person and then by email. Wallent says he encountered nothing but support — mixed, of course, with some awkward curiosity. That's unremarkable. Microsoft is…