The company that sold Jabil Circuit Inc. the building for Jabil's new research and development lab is trading spaces with the electronic services giant. NAC Group Inc. sold its headquarters at 10001 16th St. N. in St. Petersburg to Jabil (NYSE: JBL) for $9.1 million, and will move around the corner, to 1790 Commerce Ave. N., where it will assume a lease from Jabil, said Johnathan Stanton, NAC president and CEO. The new space is smaller, about 32,000-square-feet, and about half the size of the...