If you want to watch one stat for this game, watch YPC. Against Big 12 teams ku has failed to reach 4.0 YPC in any game, and that was 3.5 in their win over ISU. The Cats best 2 games (aTm and CU) we allowed less than 2 YPC. Against ISU we gave up 5 YPC which usually gets you beat, but ISU's subpar passing game helped us overcome that. Against OU it was 4.7 and obviously we couldn't overcome that. Tech was over 7 YPC and they blew us out, ku also had over 7 YPC against us last year in blowing us out, and that with a team that averaged under 4 YPC on the year. ku's opponents in Big 12 play this year have had more YPC in every game.
Meanwhile, the Cats have been over 4 YPC in 4 of 5 games, the only time under was ISU at 3.7. Only that game and against Tech did our opponent have more YPC. And our best 2 games at over 4.5 YPC were aTm and CU.
To me, besides TOs and big plays, this will be the most interesting thing to watch. ku will get some passing yards, likely around 300. But if we can limit their run game and hold them to 3 YPC or so, we put ourselves into a great position to win the game. Offensively we've got to be at 4 or better. This will be one of the biggest keys in deciding who wins this game.
IMO I'd put the preference in this order:
1. Win the TO battle.
2. Win the big play battle (# of plays over 20 yards).
3. Win the YPC battle by at least 1 YPC.
All those seem managable given the style of play we have this year. I'm most concerned about #2, we can't give ku a bunch of big plays through their passing game. But I think we can offset that a bit with special teams; we should be able to get a few there and are more likely to than ku who has average (at best) special teams this year. Also, one of things Snyder has emphasized this year has been TO margin, we are Top 20 nationally there averaging nearly 1 more TO per game than our opponents.