You are absolutely right about Walker. He actually came in as a Freshman in the end of the first GWFC game ever played. We were getting pounded by UNC and were unable to move the ball, and in the 4th quarter Walker came in and daqrn near won the game for us, I still think if he had another 5 minutes of game time the Bison would have pulled it out. The next few games Walker did not play a down. I think it was like the 6th or 7th game of the season that Bohl finally started Walker and then the winning and the Walker era began. Bohl seems very rigid when it comes to making a decision about dumping the QB.
I am not a coach (nor should I ever be..LOL) but, it always seems that most coaches are far too slow to make a QB change. Look at how we suffered with Mertens, look at Orton in Denver....good god...Tebow is riding the bench with Brady Quinn also riding the bench. Even in that debacle of a loss to Oakland, the Broncos never changed QB!!!!
But, as a fan it is always easy to bitch about the QB when things are not going well. When a team is not doing well, the most popular player (from a fans perspective) is always the back-up QB!
I apologize in advance if this response is rambling a bit.....I have had a few drinks tonight......nothing like getting a buzz and then trying to post on the internet!