Five NCAA athletes using lifeguard duty in Oyster Bay to prep for college seasons

They’re on the other side of the whistle now. Thousands of Long Island swimmers owe their safety in the water to a group of top-tier college athletes who double as lifeguards while home for the summer — and the important aquatic gig is making them better at their sports. “Communication and a team base — you work together, and if there’s a save, everyone’s going together,” Siena lacrosse attacker Patrick Radomski told The Post. “Each person has a job, just like playing a sport. Everyone works together, and we all want the same thing.” Radomski works at pools across the Town of Oyster Bay with fellow star-caliber talent in UConn cheerleader Charlotte McKelvey, SUNY Oswego swimmer Allison Priestley, soon-to-be UMass freshman lacrosse player Tyler Byrnes and Cassidy Morrow of the Siena women’s