It's really all just technical jargon for hybrid positions. Viper, Striker, Star, Bandit, Rover, Spur, Buck. They're all just names coaches assign to non traditional defensive positions. 3-4 teams use a hybrid OLB/DE. 4-2-5 teams use a hybrid OLB/S. some 3-3-5 teams use both a hybrid LB/DE and...