There are hints of it in "Let He Who Has Eyes See," actually.
Tekeny Ghemor and Turrel ended up getting hold of Berat's petition to stay in the service, and making it actually happen. Ghemor sent one of his staff officers, Glinn Bresul Yejain, to become Berat's new first officer and aide.
Upon Yejain's arrival, Berat held a meeting with his senior officers (those ranked dalin
and above) and went over in frank detail what it was going to mean serving under him now that he had this disability. He offered any of that rank who wished it to transfer off of the Sherouk
without prejudice (Ghemor and Turrel would've helped with the reassignments).
Everyone offered the choice chose to stay.