My view is you take the best player on the board (or trade down) and don't reach.
Suppose the Bills have Spiller as a top five talent and only have Clausen (or whoever else you want them to pick at that spot) as a late first round or second round pick on their board, why would they ever pick Clausen (or whatever player) at number nine.
I have confidence that this group is not going to reach like the other guys. They will either trade back or stay true to the board.
In the end, if they do that and the pick happens to be Spiller (or whoever else), I will not have a problem.