USC is idle this week after opening the year with wins over LSU and Utah State, so Trojans head coach Lincoln Riley has hit the road to watch a pair of Georgia high school football games featuring a handful of Southern Cal commits. Riley and defensive backs coach Doug Belk are at Carrollton High School first this evening as the Trojans take on Gainesville. According to WeAreSC‘s Scott Schrader, the two coaches will leave at halftime to watch Douglas County vs. Buford. Five USC commits are spread between those four schools. At Carrollton, five-star quarterback Julian Lewis and three-star corner…