Ryan Lochte has fans doing a double-take. The Olympic swimmer debuted dark, scruffy facial hair and a fresh tan in a new video posted to Instagram over the weekend. In the clip, he announced a major “plot twist” — he’s taking on a new position as assistant swimming and diving coach at Missouri State University. “Swimming gave me an incredible career, memories, things I will cherish forever, but over the last couple of years something so unexpected happened,” Lochte, 41, explained. Ryan Lochte debuted dark, scruffy facial hair and a fresh tan in a new video posted to Instagram over the weekend. ryanlochte/Instagram The Olympic swimmer gave fans a major update on his career journey in the clip. ryanlochte/Instagram “I might actually be more passionate about coaching than competing,” he continued, stating that he believes he “might even be a better coach” than a competitor.…