Harold Cannon, chief economic development officer for Knoxville, has announced his semi-retirement. Cannon has held his current role for three years and before that was appointed the city’s director of engineering. Prior to joining the city, Cannon served as president and co-founder of Cannon & Cannon Inc., a role he held for 24 years. Before starting Cannon & Cannon, he worked 15 years at Barge, Waggoner, Sumner and Cannon as a project manager and vice president. Cannon plans on continuing to be involved in some current municipal projects as well as volunteering for other organizations in the city.