The annual Jefferson-Scranton Football Clinic begins tonight at the Power Lift factory along east Highway 30 in Jefferson and continues tomorrow at Greene County High School. There’s been a lineup change for the strength and conditioning portion of the clinic tonight. Iowa State University strength and conditioning coach Yancy McKnight has been added to the lineup for this evening and will speak at seven o’clock.  Indianapolis Colts strength and conditioning coach Roger Marandino is among the other speakers at Power Lift. University of Iowa head coach Kirk Ferentz is the headliner on Saturday.