Tax Prof Anne Alstott, who moved from Yale to Harvard in 2008, is returning to Yale, effective July 1, 2011. From her Harvard web page:

After graduating from law school in 1987, Professor Alstott spent three years as an associate at a Wall Street law firm and two years as an attorney-advisor in the Treasury Department’s Office of Tax Legislative Counsel. In 1992, she joined the faculty of the Columbia University School of Law as an associate professor. At Columbia, she won the Professor Willis L.M. Reese Award for Excellence in Teaching. In 1997, she became a tenured professor of law at Yale, where she twice won the Yale Law Women teaching award. In 2004, Yale named her the Jacquin D. Bierman Professor of Taxation. She arrived at Harvard in 2008.

This is an important move by Yale to shore up its tax curriculum following the loss of tax legend Michael Graetz to Columbia.  (The departures of Alstott and Gratez likely explain why Yale dropped out of the U.S. News & World Report tax rankings this year for the first time (following a nosedive from #10 to #19 in last year’s rankings).