The Center for Entrepreneurial Innovation is losing its executive director who helped start the Phoenix-based incubator in 2013. Jeff Saville announced his resignation today to employees, effective March 23. He is leaving CEI to be the marketing director at Valutek, a Phoenix-based company that specializes in the manufacturing and sales of clean room consumables. "I am proud of my time at CEI and all the things our team accomplished," Saville said in an email. "From the ground up, we tried...