Callahan, who has more than 25 years of experience in the casino industry, previously worked in top positions at Ocean. But it was his time at Borgata Hotel Casino & Spa that is more noteworthy.
When Callahan and a group of Borgata executives left that casino to work for Ocean in 2020, Borgata filed suit, claiming Ocean was poaching key executives and stealing trade secrets. Borgata dropped that lawsuit in May after a settlement.
At Borgata, Callahan was vice president of relationship marketing for 17 years.
Last month, a 50% stake in the Ocean casino was sold to the Ilitch family, which founded the Little Caesars Pizza chain and owns the Detroit Tigers and Detroit Red Wings.
Callahan will replace Terry Glebocki, who resigned from the CEO post last month, just prior to the announcement of the sale.