I actually heard Detillier say yesterday that 40% of NFL rosters are now made up of UDFAs. So, there is still a lot of talent out there even after the 7th round. Which is likely a direct effect of the draft only being 7 rounds now.
40% of rostered players being FAs is crazy. It means NFL has 40% of it talented on non- guaranteed contracts. NFLPA leadership has to be the worst of all the professional sports unions.