Pakistan has appointed a new chief for the Inter-Services Intelligence (ISI) Directorate, Reuters reported. A military statement issued around midnight on Monday announced a major overhaul of Pakistan's top brass by army chief General Ashfaq Kayani. Lieutenant-General Ahmed Shujaa Pasha, formerly head of military operations, has been appointed Director-General of the ISI, replacing Lieutenant-General Nadeem Taj. Kayani, who had been ISI chief until a year ago, also replaced four of the nine corps commanders and appointed a new chief of general staff.