If all of this happens, wow, but not unexpected.
KU will need three starters from the portal (PG or SG, SF, PF), at least one more guard, two additional Bigs (backup 4 and 5).
Big off-season's for Jackson and Passmore awaits as you need both to be ready to be counted on. Elmarko got a glimpse of that at least his freshman year. Jamari is another you need to at least be serviceable as your potential 4th/5th guard.
Tiller's setback is significant as far as being a rotation guy year 1. He's missed a year of ball at this point so need to be cautious here. Expectations are low for Calderon from those that have watched him.
I think we need to recognize this could be a potential rebuild year unless you hit on just about everything in the portal to complement Peterson/Flory. Do you go with veterans, or do you go with young talent that can be developed. I don't know the right answer but perhaps better to lean heavily in one area (young) and perhaps get 1 or 2 veterans to fill the gaps you really need to have proven talent at.