Of course no one will really have any idea where Harris is on the ready scale before fall camp, but my uneducated speculation is he plays against CSU (bc they are terrible and we will be up and they will pass a lot, so it will be a chance for him to just focus on one thing), the AZ (bc I think they are terrible too, also think we will be ahead and it gives him a few weeks to improve in practice) then I think he will play against UCLA (also think they are borderline terrible, and that will be the game that shows whether, after another few weeks of work in practice, he is ready to be a contributor for the rest of the season or held back as injury insurance/redshirt).
To further speculate, I expect him to show improvement each week and be a contributor in the back half of the season. He seems sharp, I expect he will learn fast how he can be most effective, and that he will put in the work in the spring, summer and fall to add the needed weight to get on the field.