The problem is that Brown and BC are leaving big plays on the field. Those extra scores and longer drives are the only solution to BC winning more than seven games this year. The D is lost (109 in Def Efficiency). While that will hopefully improve, what is more likely to get better: the side of the ball with the talent and experience (O) or the side with lots of youth and questionable speed (D)?
It might not be fair to ask Brown to suddenly be as accurate as some Big XII QB, but BC doesn't have a choice. They need him to hit open guys and keep drives going. That is the only way to avoid more games like Kansas, where the D couldn't stop anything.