Amid voices emerging within the party calling for a change at the top, the Shiromani Akali Dal core committee Thursday held a detailed discussion on its drubbing in the Lok Sabha polls, and reposed full faith in Sukhbir Singh Badal's leadership SAD leader Charanjit Singh Brar wrote an open letter to party chief Sukhbir Singh Badal, suggesting him to form a committee in the larger interests of the party.