During his terms as County Executive, Yager established himself as a sound fiscal manager. He left office with a budget surplus (with no tax increase) and improved the county’s credit rating from A- to A during his tenure, something not always done in small to medium sized Tennessee counties. Yager’s administration as County Executive left an enviable record including demonstrated support for the local school system and county road network, strong support for the emergency services, job creation including a new industrial park and consolidation of the local Chamber, Tourism and Industrial Board offices, an animal shelter, new health department, a new interstate exchange and scores of grants to Roane County totaling millions of dollars. As County Executive, Ken demonstrated his belief that positive results come from working together, such as his efforts with other officials to secure a regional primary care Veterans Clinic in Roane County.
As a freshman Senator he was appointed vice-chairman of the Senate Environment, Conservation and Tourism Committee. He was then elected by his peers to be on the Joint Fiscal Review Committee, which serves as a watchdog over the state's financial affairs. Prior to becoming the Senate Republican Caucus Chairman, Yager was the Chairman of the Senate State and Local Government Committee.
Ken is married to the former Malinda Raby of Oliver Springs. They have two children, Bonnie-Marie and Will. He and Malinda make their home in Kingston.