Frost joined Oregon's coaching staff as its wide receivers coach on January 26, 2009. Working under head coach Chip Kelly and offensive coordinator Mark Helfrich, Frost was instrumental in instituting a toughness among his receivers that enhanced their ability as downfield blockers, which contributed to the success of the Ducks’ potent running game. During his four seasons as wide receivers coach, the Ducks reached four straight BCS bowls and three of his departed wide receivers have been invited to NFL camps.