I believe I was told elsewhere, in this very thread, that Iowa had the 5th most efficient offense in the country last year. So what was it, was the offense efficient, or was it inefficient?
Let's look at the things you say we'll have this year. A new PG who has better quickness? Maybe. We don't know if he's good enough to break guys down at the Big 10 level. I hope he can, but I am not going to assume he can. Last year, I assumed Gesell and Clemmons could.
At least three shooters on the floor? A few things. This assumes that we can break people down off the dribble, which I won't assume, and also, those three shooters all play the same position, so I doubt they'll be on the floor together all the time. I am also not ready to consider Jok and Ellingsworth decent enough shooters to mess with a defense. Heck, I have doubts as to whether Ellingsworth is a Big 10 caliber player who will see court time next year.
The 7'1" center? Again, like your other points, this is based on assumptions. Woodbury hasn't proven he can be a consistent post scoring threat. They guy misses more bunnies than a one armed man hunting on Oregon Trail.
While I am not saying what you are predicting can't happen, I doubt all of it will. As many have said, we're returning 7 of 10 players, and we return too many players for the offense to have a radical transformation. This offense still has more question marks than exclamation points.