Answer
Kỳ supporters were sidelined from key military and cabinet posts during Nguyễn Văn Thiệu's struggle with Kỳ. This was because Thiệu was attempting to consolidate his power and remove any potential threats to his rule. Kỳ was a powerful general and a popular figure, so Thiệu was wary of him. By sidelining Kỳ's supporters, Thiệu was able to reduce the threat that Kỳ posed to his power.