The company's president of Nashville Haley McCollister reflects on Louis Messina's mentorship and belief in his staff.

Clockwise, from top left: McCollister, Winter, Powers, Cheatham. MCCOLLISTER, POWERS: RACHEL DEEB. CHEATHAM: MARK SURRIDGE. WINTER: JENNIFER LINDBERG STUDIO

The only job Haley McCollister has ever had has been at Messina Touring Group. Since joining the company’s ticketing department at 22 years old, she’s worked her way up and now serves as president of MTG’s Nashville office.

“The more he believed in me, the more I believed in myself,” McCollister says.

McCollister notes that many of her MTG colleagues have been with the company since they started their first jobs out of college.…