Balala was also among the first CSs who served under the previous regime to congratulate Ruto on his election, lauding his ability to transform the country.
At the time, a section of netizens claimed he was trying to 'secure the bag' under the new administration.
"It is by God's grace and the true will of the people, you were elected President. You have the ability to transform this country for the betterment of all," wrote Balala.
Simon Chelugui is the only CS from former President Uhuru Kenyatta's cabinet who was retained by Ruto.
In a list unveiled Tuesday at State House, President Ruto reassigned the Labour and Social Protection CS to the Cooperatives docket.
Chelugui previously served as the Cabinet Secretary for Water, Sanitation and Irrigation during Uhuru's presidency.