transitions.

* Kevin English, 48, was named chairman, president, and CEO of Covisint, a collaborative e-marketplace for major automotive manufacturers based in southfield, MI. English was previously managing director and CEO in charge of e-commerce for Credit Suisse First Boston.

* Larry Mueller, 48, was named CEO of Ariba, a leading B2B e-commerce solutions provider based in Mt. View, CA. He previously served as president and COO. His predecessor, Keith Krach, will continue as chairman of the board.

* Robert Swan, 40, has been promoted from COO to CEO of online grocer Webvan.com. He replaces former CEO George Shaheen, 56, of Andersen fame, who resigned in April, stating the company needed "a different kind of executive" to lead it at this time.

* Colin Reed, 53, was named CEO of Gaylord Entertainment Co., a Nashville, TN-based entertainment firm involved in theater, music, and hotels. He previously served as CFO of gaming industry marketer Harrah's Entertainment.

* Patti S. Hart, 44, was named chairman and CEO of Redwood City, CA-based Excite@Home, the leader in broadband. Hart has more than 20 years of telecommunications experience including executive positions at Sprint and Telocity. She succeeds George Bell, who announced his resignation in April.

* Terry S. Semel, 58, was tapped to take over as chairman and CEO of Santa Clara, CA-based Internet company Yahoo! Founder Tim Koogle is now vice chairman, a transitional role he's expected to retain until August, after which he'll continue on the board of directors.

* Dr. Klaus Bleyer, 6o, retired as CEO of Cincinnati, OH-based auto parts supplier ZF Friedrichshafen AG, effective June 30. Dr. Siegfried Gall, former executive vice president of technology and vice chairman of the board, was named Bleyer's successor.

* Andy Slater was named president and CEO of Los Angeles-based Capitol Records, a division of EMI Music, the world's third-largest recorded music company and largest music publisher. A former music journalist, Slater eventually established his own talent company, Clean Slate Records, where he signed Fiona Apple, and is now considered one of the industry's most successful producers and talent managers.

* Jim Krushelniski, 51, was named president and CEO of Heinz Canada in Toronto, effective May 1, following the resignation of Mark Leckie, who has accepted a position outside the company. Krushelniski is a 29-year Heinz veteran.

* Robert Kopriva, 50, was named president and CEO of Chicago-based Sara Lee Foods U.S., a subsidiary of food and consumer goods company Sara Lee Corp. His appointment fills a spot left open by management shifts last fall.