James BlackleyThe executive exodus continued at Cablevision with executive vice president of corporate engineering and technology James Blackley and executive vice president of consumer operations Kathleen “Kip” Mayo handing in their resignations.

While Blackley will stay on until May, his resignation seemed abrupt given that he was listed as one of the executives that former SeaChange International President Yvette Kanouff was reporting to when she was hired as Cablevision’s executive vice president of engineering and software design earlier this week.

Kanouff also reports to Wilt Hildenbrand, senior advisor of engineering and technology. Multichannel News reported that based on Blackley’s resignation, Hildenbrand would return to Cablevision full time, while Light Reading reported that some of Blackley's team are also leaving Cablevision.

Mayo will leave Cablevision by the end of this month.

“As Cablevision evolves into a more competitive and customer-focused organization, executive changes are to be expected,” Cablevision wrote in a statement. “It is an occurrence that is inevitable as we continue to grow and transform as a company.”

Late last year, Cablevision cable prez John Bickham resigned, followed by chief operating officer Tom Rutledge’s resignation in December. A week later, Rutledge was named as Charter Communications’ new president and CEO.

Last week, Jonathan Hargis resigned from his position as Cablevision’s executive vice president of marketing and will leave the cable operator’s employ later this month.

Cablevision promoted Blackley to executive vice president of corporate engineering and technology in 2010, where he continued to report to Rutledge. Blackley joined Cablevision in 1996 and was onboard during the company’s rollout of its Wi-Fi network in its New York metropolitan area footprint and the launch of its RS-DVR technology.