Philippe Kahn, founder of the disconcertingly shrinking Borland International Inc, has resigned as president and chief executive but will retain the post of chairman. Chief financial officer and executive vice-president of operations Gary Wetsel was named president and appointed to the board, leaving Kahn to focus on long-term planning, international business and other special projects. It has become clear that my continuing as president and chief executive has become a distraction at a time when Borland needs to be fully focused on the challenges ahead of it, Kahn said, adding the board of directors has full confidence in Gary Wetsel and the rest of the management team to design and implement a successful restructuring plan.