USC has won the AP national championship trophy before. LSU has won the AP national championship trophy before. USC has won the UPI national championship trophy before. LSU has won the UPI national championship trophy before. BUT IN 1985 THE UPI POLL TURNED INTO THE COACHES POLL. so now LSU has won the COACHES national championship trophy However, USC has NOT won the Coaches championship trophy. so USC won the AP championship, so what, we have done that also. but can USC say they have ever won the Coaches championship?