(Vancouver, WA) -- Authorities say two youth coaches were recently arrested as part of an underage-sex sting operation. Officials say the coaches communicated with detectives posing collectively as a 14-year-old girl through a Craigslist ad. Arrested were 51-year-old Jeffrey Graham, who previously worked as a softball coach at Rex Putnam High School in Milwaukie, and 49-year-old Sean Dotson, who had worked as a coach for the Banks Youth Soccer Association.