The problem with small ball is that the NFL is so random. One weird bounce the past 3 weeks and the Chiefs have one or more loss. If you have a 2 score lead, or at least a 7 point lead then you are no longer at the mercy of the bad bounce. In fact, the Chiefs opponents so far have been the victims of the bad bounce (Likely toe out of bounds, 4th and forever DPI, blatant DPI in the endzone missed). I don't think any team really wants to play small ball unless they have to due to their personnel.