By Ross Dellenger The transfer portal is creating roster issues across the sport. Like many first-year coaches, Shane Beamer dealt with roster turnover last season that put his South Carolina team shy of reaching full capacity. The Gamecocks entered the 2021 season having 79 players on scholarship—six short of the maximum 85 spots allowed by the NCAA. And yet, those six scholarships—fully paid tuition, books and fees—were never used because of the NCAA’s annual signing limit policy, which restricts schools to signing no more than 25 new players every year. “I couldn’t get my roster back up to …