Watch out. St. Charles North’s Cooper Mellican emerges as a double-double standout. ‘Flying under the radar.’

Watch out. St. Charles North’s Cooper Mellican emerges as a double-double standout. ‘Flying under the radar.’

St. Charles North’s Cooper Mellican confirmed that he’s not the most vocal person in the world. That didn’t stop North Stars coach Tom Poulin from pushing Mellican to become more assertive this season, putting him in the unfamiliar position of running the team during fall ball. “I definitely knew that was a role I was going to have to step into,” Mellican said. “My personality is not super loud. I’m not going to be screaming and yelling at pract…