Kelley’s new role still has to pass regulatory approval. Mathis will be senior vice president of Business Development and reporting to MGM Resorts’ President & COO Bill Hornbuckle’s office. 21 that MGM Springfield President and COO Michael Mathis will be assuming a new role in the company and will be succeeded by Chris Kelley,who has served in the same capacity at MGM Northfield Park in Ohio since April 2019.
SPRINGFIELD – MGM Resorts International announced on Jan.
