So.... Is the former hobgoblin supreme leader, actually Jirix? I ask because I never really thought about how it ties in that the leader was smart enough to follow Redcloak immediately rather than try to be combative, and then out of nowhere comes a smart hobgoblin with a name who's buddy-buddy with xykon.

Not to mention in GDGU:
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The supreme leader was shown to be a cleric of considerable wit who prefers negotiation over conflict, not unlike Jirix himself.