"It's a tremendous challenge, and I'm really excited to be taking it on," Eggleston said on the side of the WVU football practice field on Tuesday. "It's extremely difficult to leave this position and all the people here (at WVU) with all the exciting things we have going on."
Eggleston has a connection to the hospital. His sister was treated at the hospital before passing away last year, he said.
From the time his late sister began treatment his family began to move to the Rochester area. The Oneonta, N.Y. native said that his parents and grandfather now live in Rochester, and he and his family are excited to go back to what he now calls home.
"It was an easy decision to make, because it was the right one and because it was for family," Eggleston said.
Eggleston took over as interim executive director of the MAC in April of 2008. He was promoted to the full-time position less than a month later.
Eggleston has been at West Virginia since 2007. Prior to his stop in Morgantown, he worked for athletic departments at Elmira (N.Y.) College and James Madison.
Eggleston will leave West Virginia in the next three or four weeks. There will not be an interim athletic director named, he said.
"Niles Eggleston did a great job in leading our Mountaineer Athletic Club, and brought the department to new heights in terms of our athletic fundraising," said Athletic Director Oliver Luck in a statement. "He will be greatly missed, but at the same time I want to wish him nothing but the best.
"I know he will do an outstanding job in his new position. Niles will always be part of the Mountaineer family."
Eggleston has been in charge of the MAC, which is the main funding source for the athletic department, at its finest. For the fourth straight year, it generated a record amount in contributions. In 2010-11, the MAC raised more than $21 million compared to nearly $19 million the year before.
"There's a solid foundation when I was fortunate enough to be appointed, and we've done everything we could to build on that," Eggleston said. "We've been able to generate revenue and support of coaches and players."