So your saying that it was possible for Bibby to adjust, but its not possible for Evans to adjust. And you know this how? The kid is nineteen years old. Did he come out of the womb with shooting guard stamped on his butt. Are you the same person today that you were when you were nineteen? Did you change a little? Have you hopefully improved as you gained experience.
Look! If a person has no court vision or passing skills. If he has no ability to handle the ball and you try and turn him into a point guard, its probably going to fail. But if he has all the qualities that a point guard requires, but just hasn't played that position, but for half a year, and that half a year was his best ball, then yeah, he might just turn into a good point guard and a great player.
For a guy that watches as much college basketball as you do, you should know better. When Michael Jordan came out of college, there were people that wern't that high on him. He wasn't that great of an outside shooter, and made his living by driving to the basket. He needed the ball in his hands to be effective. Well, he turned out to be OK. He also played in a system that didn't really showcase all of his talent.
I don't know if Evans will turn into a great protitical point guard. But I think he will turn into a great player. And thats good enough for me.