Local News Passion for learning, teaching drives Nick Rackers At the Commercial Turf & Grounds Management program at State Technical College of Missouri, instructor Nick Rackers displays more than two dozen flags representing professional sports teams or championship sporting events. by Gerry Tritz Jul. 11 2021 @ 11:05pm Nick Rackers poses for a photo at the Osage County Country Club in Linn where he works for State Technical College of Missouri. State Tech has taken over management of the country club where turf management and landscaping are necessary and courses are taught. Photo by Julie Smith / News Tribune. At the Commercial Turf & Grounds Management program at State Technical College of Missouri, instructor Nick Rackers displays more than two dozen flags representing professional sports teams or championship sporting events.