The week that Atchison's departure was announced, SeaWorld also said they would lay off more than 300 employees in an effort to cut costs.
The company has been swirling in controversy since the release of the 2013 documentary "Blackfish." With the layoffs, struggling stock prices and the departure of several major corporate sponsors, it's clear that SeaWorld will need to make major changes to restore its public image.
"SeaWorld needs to break out of the rut it's in and go in a new direction that de-emphasizes and even eliminates the animal shows," Naomi Rose, Ph.D., a marine mammal scientist with the Animal Welfare Institute, previously told The Dodo.
Before becoming CPOO, Brown was the park president for SeaWorld Orlando, Busch Gardens Tampa and Busch Gardens Williamsburg, in addition to having served as the corporate vice president of operations.
The company also announced Friday that Donald Mills was appointed to Orlando park president, and Terry Prather, who previously held that role, will become SeaWorld's corporate vice president of operations.