March 1 (Reuters) - NCC Group Plc
* Rob Cotton has stepped down as chief executive of group and as an executive director of board with immediate effect
* Brian Tenner, chief financial officer, will take over as interim chief executive and will lead strategic review, which was announced last week.
* Board expects to update market no later than group's year end results, due in july 2017. Source text for Eikon: Further company coverage: (Bengaluru Newsroom: +91 80 6749 1136)