Key regional mediator Egypt has replaced the head of its powerful state intelligence agency, local media reported, putting new chief Hassan Rashad at the helm of stalled Gaza talks. Abbas Kamel, a close ally of president Abdel Fattah al-Sisi and his former chief of staff, had held the post since 2018. Kamel will now take up a post of presidential advisor and envoy, as well as general coordinator of security services, according to state-aligned media Extra News. The switch-up comes as Egypt finds itself surrounded by regional conflict. For over a year, it has failed alongside fellow mediators Q…