If Duke doesn't shirt, we 'might' lose either Henkle or Kasak and I don't see Cael letting that happen.
Both PJ and Marcus could benefit from a redshirt (Marcus especially), and it's the only path towards total lineup harmony next year, granted that had not necessarily been Cael's top motivating theme historically.
I still think Duke will end up one of our very best all time, but three things to consider: With a redshirt he becomes a an even more scary unstoppable force for 3 years. No he is not going up and beating Mitch. Pulling a Levi and jumping all the up to 174 is an ill conceived plan for many reasons.
As for Portal? The only 3d chess move is to flip Ross and let him redshirt a year. That would hurt DT which is a nice bonus, and secure the future for heavyweight. And yes, after getting eviscerated by the collective last summer, I'll double down on my assessment of Cole. Sorry he just doesn't have the body for a national champion at heavy even with 10 more lbs. His ceiling is low AA which is pretty damned good, but there are far too many here blinded by their blue and white goggles.