Nick Bosa was already incredible despite being a freshman coming off an ACL tear, so "all" was definitely an oversight. Jerome Baker might qualify as a breakout star as well (he's no Darron Lee just yet). The rest of the players that you listed are goodish to very good IMO, but I wouldn't call any of them stars just yet. But that all might be semantics; we both have total faith that our defense will be phenomenal this year.
But the offense ... against elite defense, it was pretty inept. It was inept against Michigan State, even! The Clemson loss brought me back to the 35-3 drubbing from USC back in 2008, when the true contenders were playing a whole different caliber of football. With how recruiting goes, only a few teams have the talent to win a championship, so IMO being middle of the pack is MILES from being elite. I think that in this era you can be the tenth-best team in the country and not be able to beat the best more than once out of ten times.
Just sayin', and thanks for your thoughts.