I agree it's hard to imagine a "pure" post presence like Kofi in the flow of this offense. Kofi is a physical stud of mythical proportions. I also think people are overestimating his skillset, or how his physicality will translate. He'll have to move well, break some of his bad habits, learn to shoot the 10 footer, learn the art of defending, etc. However, I do think you can swap out Giorgi and use him as a cutter, and he could potentially help Kofi along. He and Samba should compete for the back-up role with ADR's eligibility done. Giorgi is so versatile, I wouldn't rule out him being able to be on the floor with Kofi, but Kofi looks very raw to me as anything other than a traditional post center...at least for now.
As much as I like to complement Kofi's physical development, the way the NBA is, guys aren't going to make it as a traditional center. It will be a huge (no pun intended) test of the staff to round out his skillset in the areas he hasn't really had to use in hs. I can't imagine he's had to do anything other than get the ball close to the basket and crush it. BIGTEN ball will have good bigs, and the NBA skillset for a center has gone up a lot in the last 10-20 years away from post scorer. Centers have a lot of responsibility to kick-out when there's a double-team, help with spacing, and have good awareness of how to help the offense, in addition to being able to score in the post when the right match-up is there. I honestly think it's expecting too much of him to think he'll be on the floor much his freshman year. Great ceiling, but a long way to go IMHO.