TV WATCHERS: Mack Trucks CEO told to "slow down" on CBS's "Undercover Boss"

The show follows Denny, sporting a scruffy beard and moustache for his disguise as new hire "Roger" sheds his suit for a black Mack Trucks T-shirt and baseball cap as he goes undercover as a line-worker. Two Lower Macungie employees - Jeff Manty and Allan Iezzi - are featured in the show as they work alongside Denny.
Denny also works behind the scenes at the Hagerstown, Md., plant that produces all of Mack Trucks’ engines and the Baltimore, Md., distribution center that provides parts to Mack dealers and customers. During the course of the show, he discovers that rumors are rampant among employees that Mack Trucks is moving its operations to Mexico.
Mack Trucks, which moved its headquarters from Allentown to Greensboro, N.C. in 2009, is the second largest manufacturer of heavy-duty trucks in the world.
Slagle, 56, took over as Mack Trucks CEO in 2008. Before that he was the CEO of Volvo Construction Equipment North America in Asheville, N.C.