It seems that the application virtualization startup Trigence isn’t satisfied with its leadership team built so far as it continues to hire (or replace) executives:

• February 2007: Vice President of Sales
• March 2007: Chief Operation Officer (who left after just one year)
• October 2007: Director of Product Management and Marketing
• November 2007: Director of Consulting Services

And now the company replaces its former CEO and President David Roth with Greg O’Connor:

O’Connor joins Trigence from Progress Software, where he was President of Sonic Software. Greg grew the company from concept to 350 people.

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O’Connor joined Progress Software Corporation in 1992. O’Connor oversaw the development, strategy and marketing of Progress® WebSpeed®, an HTML-based development tool and transaction server first introduced in 1996. Additionally, O’Connor was responsible for the introduction of Progress® Apptivity™, a Java application server and integrated development environment for developing and deploying Web-based business applications.

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Roth was appointed in April 2005 and he’s now working at his own consulting firm.