DailyTech - In a surprise move, Kevin Rollins today resigned his position as CEO of Dell Inc. Overnight upper-echelon management changes at Fortune 500 companies are not typical occurrences. Michael Dell, founder of Dell, will re-assume the role of CEO and retain his duties as Chairman of the Board. In 2004, Dell stepped down as CEO and was replaced by Rollins. Management at Dell has come full circle. Since Rollins stepped into position as CEO, Michael Dell has been putting his hands into various areas of Dell such as marketing, operations, mergers and other areas where he was previously preoccupied doing other things.