"Casey has been essential to our current employee recruitment and retention efforts through various human resource initiatives, especially as we have navigated the unusual labor market of the past year. I look forward to Casey's continued success and positive impact as he steps into his new role." Following the previously announced retirements of Norman H. Asbjornson as executive chairman and Paul K. "Ken" Lackey Jr., as lead independent director, the board of directors elected A.H. ("Chip") McElroy II as independent chairman of the Board and Caron Lawhorn as independent vice chair of the board. "Norm was uniquely qualified to lead AAON's board from the company's inception through his recent retirement," said Fields. "With Norm's decision to retire from his executive chairman position and Ken Lackey's decision to retire from the board following 15 years of service, the board determined it was the appropriate time to modify the company's governance structure.