Memphis-based IT company Wintellisys continues expansion by hiring new CMO MEMPHIS, TN – Memphis-based IT infrastructure-managed services provider, Wintellisys, Inc., has named marketing veteran Ronan Keane as the company’s new chief marketing officer. Keane has more than 16 years of experience in digital marketing and demand generation with XO Communications (now Verizon Business Markets) and Vonage Business and Centerfield Business, one of the largest telecom…