Nick Cazana’s group paid $8.5 million to buy the Holiday Inn World’s Fair Park from a group led by Chattanooga developer Franklin Haney about 18 months ago, and since then renovation and redesign have been full steam ahead. Built for the 1982 World’s Fair, recent transformations to the tune of $8 million include upgrades to the lobby, meeting areas, and guest rooms. General manager Michael Parisi says the next logical step was hiring of a high-profile chef, and that’s happened quickly, too. Tom Ortman assumed exec chef duties Aug. 1. No stranger to Knoxville, Ortman has most recently spent 10 years as the executive chef for Knoxville’s Crowne Plaza, and is also a food and beverage instructor for the University of Tennessee’s Professional and Personnel Development Team. This is the second time Parisi’s hired Ortman. The first was in 1999, when Parisi was food and beverage director for none other than Holiday Inn World’s Fair.