A playmaker at the QB position is crucial for this team. Even if they are going out on a limb and taking a chance I think they need to go with whomever shows the ability to make the most plays on his own, both through the offense and by improvising. Lanning very well could be that guy. He's the most athletic, he probably has the strongest arm, and he's bigger than both Rohach and Richardson.
With no guarantees that the offensive line is going to be a strong point, and huge concerns with the defenses ability to stop opposing teams I think it's critical that they try to find a playmaker at QB. I don't think the next Seneca Wallace is on the roster, but if Lanning can figure out the mental side of the game I believe he physically brings more to the table than the other two. He could provide a spark that the other two can't. If I'm Rhoads/Mangino I would realize that I need to produce results. The fans aren't going to be patient much longer. Iowa State is not built like Iowa football teams. The coaches can't minimize risk at the QB position because they have a stout defense and running game to back them up. They need a guy who is going to keep the offense on the field, and put points on the board.
I agree, with you but in the future this will change. We haven't had good receivers to throw to in a LONG time. QB woes will get better, I'm confident. I'm also fairly confident it will be Lanning this year, just from watching the arm strength and speed of release, I've made my own choice on his ability to make those throws. Whether or not he can get the mental side down is another thing.