David Villa was named CIO of the $83.1 billion State of Wisconsin Investment Board, Madison, according to Vicki Hearing, public information officer. Mr. Villa, who will take over the position June 5, will be responsible for managing all aspects of SWIB's investment program and report to David Mills, executive director. SWIB hasn't had an overall CIO since Michael McCowin retired in 1998. Since then, it has a group of asset-class CIOs, who will report to Mr. Villa, although their titles could be changed by the time he starts, Ms. Hearing said. Mr. Villa is currently CIO of the $153 billion Florida State Board of Administration, Tallahassee, which runs the state's $115 billion retirement fund. Michael P. McCauley, the Florida fund's director of investment services and communications, couldn't be reached for comment about a replacement.