Dabo Swinney was giddy at the prospect of what is still to come at Clemson. After winning the national championship, the coach was already looking ahead to a scheduled team meeting on Friday, the first for his 2019 team.

“We’ve got some dynamic pieces like Justyn Ross and that guy right here,” looking over at quarterback Trevor Lawrence, “that No. 16 coming back that are going to lead the way.”

Yet...