Ron Raccuia, who played the lead role in negotiating Buffalo's new $1.54 billion stadium deal, is out as the Bills' top executive.

In saying the sides had parted ways, owner Terry Pegula cited a monthslong evaluation of the team's business side in determining a need to "revamp and improve our structure."

As part of the shakeup, Pegula announced John Roth will assume Raccuia's titles as executive vice president and COO.

Roth will now split his duties between the Bills and the Pegula-owned Buffalo Sabres, where he has served as the NHL team's COO after being hired in January.