By Jacob UnruhStaff writer junruh@oklahoman.comSTILLWATER — Oklahoma State coach Mike Boynton and his staff took a trip to Walmart on Sunday with a surprise in mind. Walk-on guard Dee Mitchell was working one of his shifts for the week and the staff had some wonderful news. Mitchell is no longer a walk-on. Boynton and his staff — with the quarantined Cowboys’ players on a Zoom call — surprised Mitchell at his full-time job with the news that he had earned a scholarship, bringing Mitchell to tears. OSU recently had a scholarship open due to the departure of freshman Montreal Pena, a source told The Oklahoman.Read more on NewsOK.com