by simply not consistently putting together drives.
This was my biggest complaint about Weis' supposed great offenses... they were most often feast or famine so in the end the stats looked like 'oh good offense, but our defense sucks' but more often than not those yards/points came when we were already down big because our defense was hung out to dry from multiple consecutive 3 and outs.
This year's team has been pretty good about not doing that, until the second Clemson game... I wouldn't be surprised if down the road when all dust settles we found out the Kelly panicked and took 'more' control of play calling during that stretch. Things just seemed eerily familiar during a lot of that game and it hasn't felt like that the rest of the season.