What part of TravelCenters of America's business is growing fastest? What part is having difficulties?

What’s going fastest is the over turn of employees. Corporate bases their decisions based on all TA sites combined instead of by each sites abilities and making budget. My site has been short handed for several years now and they are cutting back hours on our employees. I offered to work less hours to make up for the cut in pay for the parts counter workers but they refused. Now the only 2 parts counter workers we have are looking for new jobs.