South Carolina needs more out of its running backs coming off of an abysmal performance this past season. The Gamecocks ranked last in the SEC and 129th in the country with just 85.1 rushing yards per game, one of only 11 teams in the FBS that failed to average 100. They added Arkansas transfer Raheim “Rocket” Sanders, who ranked second in the SEC with 1,443 yards rushing in 2022. Sanders played in only six games this past season due to injury and missed South Carolina’s spring game a couple weeks ago as he is still recovering. That gave the other Gamecocks running backs a chance to show what …