That's not right. Below are all of our ACC opponents plus UGAg and Notre Dame this year. In this list of 50 there are:
9 - GR SR
8 - RS SR
5 - SR
9 - RS JR
5 - JR
5 - RS SO
4 - SO
2 - RS FR
3 - FR
That's 31/50 that are 4+ years into a program. Only 9/50 are 2 years or less into a program (SO, RS FR, and FR). Out of those 9, 4 of those kids belong to Clemson and UGAg (2 each) and they are highly rated top 250 national kids. So excluding those top tier kids, only 5 of the remaining starting OL of our opponents are FR, RS FR, or SO.
Clemson (1-RS JR, 1-JR, 1-RS SO, 1-SO, 1-FR)
LT – Jordan McFadden RS JR
LG – Marcus Tate FR (5.9, 4*, #114 national)
C – Hunter Rayburn RS SO
RG – Will Putnam JR
RT – Walker Parks SO (6.0, 4*, #38 national)
UNC (2-GR SR, 1-RS SR, 1-RS JR, 1-JR):
LT – Asim Richards JR
LG – Joshua Ezeudu RS JR
C – Quiron Johnson GR SR
RG – Marcus McKethan RS SR
RT – Garrett Walston GR SR
Pitt (1-GR SR, 3-RS SR, 1-RS JR):
LT – Carter Warren RS SR
LG – Marcus Minor GR SR
C – Owen Drexel RS SR
RG – Jake Kradel RS JR
RT – Gabe Houy RS SR
Duke (1-RS SR, 1-RS JR, 1-JR, 1-RS SO, 1-SO):
LT – Graham Barton SO
LG – Maurice McIntyre RS JR
C – Jack Wohlabaugh RS SR
RG – Jacob Monk JR
RT – John Gelotte RS SO
Virginia (3-RS SR, 2-SR):
LT – Bobby Haskins SR
LG – Ryan Nelson RS SR
C – Olusegun Oluwatimi RS SR
RG – Chris Glaser SR
RT – Ryan Swoboda RS SR
Virginia Tech (3-RS JR, 1-RS SO, 1-FR):
LT – Luke Tenuta RS SO
LG – Lecitus Smith RS JR
C – Brock Hoffman RS JR
RG – Kaden Moore FR
RT – Silas Dzansi RS JR
Miami (1-GR SR, 1-SR, 1-JR, 2-SO)
LT – Zion Nelson SO
LG – Navaughn Donaldson SR
C – Jakai Clark SO
RG – DJ Scaife JR
RT – Jarrid Williams GR SR
Boston College (3-GR SR, 1-RS JR, 1-RS SO):
LT – Tyler Vrabel RS JR
LG – Zion Johnson GR SR
C – Alec Lindstrom GR SR
RG – Christian Mahogany RS SO
RT – Ben Petrula GR SR
Notre Dame (2-GR SR, 1-SR, 1-JR, 1-FR):
LT – Joe Alt FR
LG – Andrew Kristofic JR
C – Jarrett Patterson SR
RG – Cain madden GR SR
RT – Josh Lugg GR SR
UGa (1-SR, 1-RS JR, 1-RS SO, 2-RS FR):
LT – Broderick Jones RS FR (6.1, 5*, #5 national)
LG – Justin Shaffer SR
C – Sedrick Van Pran RS FR (5.9, 4*, #83 national)
RG – Warren Ericson RS JR
RT – Warren McClendon RS SO