President Park Geun-hye has appointed a former journalist as her new spokesperson in a personnel reshuffling carried out to boost efficiency of state affairs management, Cheong Wa Dae said Sunday.

Jeong Yeon-guk resigned as a department head of MBC, a terrestrial network, to take up the new post, which has been vacant for 20 days since the previous spokesperson, Min Kyung-wook, left to run in next year's general elections, the presidential office said.

The former TV reporter most recently headed the department managing current affairs programs and hosted the popular MBC program "100 Minute Debate."

"I don't know much, but I'll try to learn things as quickly as I can," he told reporters after the announcement.

On Sunday, Park also named Yook Dong-in, a spokesman for the Financial Services Commission, as the new head of Cheong Wa Dae's press center. The post has been unfilled for 33 days.

The former reporter had been the FSC spokesperson since last year. (Yonhap)