Fresh off practice Monday night, Jim O’Dell had a vivid reminder of why he enjoys his new job so much. The Lanier Canoe and Kayak Club’s High Performance 1 coach had just put his team through cardio and a 20-minute core workout, then a boot camp workout at the YMCA. That flexibility by the teenagers on a cold, windy day impressed O’Dell. “There’s so much to enjoy: The enthusiasm of these teenagers, their thirst to want to do better and better and willingness to try new things,” O’Dell said in a phone interview.