Bo is probably waiting till they do something grt against a very good offense like you see in the Big 12. I actually think more of him for waiting as he knows this game is the one where Huskers find out who they are. preseason games don't mean much and in the one game they really needed to win, they pi** down their legs when they had the opportunity to make a real statement. NU did much better than I and many thought they would so kudo's for that but they still didn't finish the job.
Bo knows this is a key game, lose and they descend back down to the middle of the pack in conference and fall off all the national talking hds minds. Win on the road against the best of the North last two yrs, (whether you chose to recognize that reality or not) rebuilding yr or not, it will bring them up closer to MU and gives him something to build on. Bo and his staff need something to sell these kids who don't remember NU for the grt program it used to be and it was, heck they barely remember what happened two yrs ago.
IF the D does an outstanding job against a very good Offense and they havn't seen one yet, then it could be time to do something.
May the best team win handily, not some kicked ball or silly bounce of the ball decide the game and no injuries! Have a grt time in Columbia!