Charles Cumbaa, EVP of corporate and product strategy, plans to retire from Blackbaud on March 31. The Charleston, S.C.-based nonprofit software company says until then Cumbaa will continue in his position while assisting with the transition of his responsibilities. He joined Blackbaud in May 2001 as SVP of products and services and held that position through January 2010. Cumbaa then was president of the company's Enterprise Customer Business Unit through April 2012 when he became SVP of New Business Ventures. He kept that title when he stepped into his current job in March 2014.