The lifespan for figuring it out is about one more week. Then the Chiefs will face the most intense tests of their season: two games against the Broncos bracketing a game against the Chargers, and then a late-December bout with the Colts. With the season already past its midpoint, the Chiefs are beyond the time when their essential nature will be changed. Their offense ranks 29th and 31st, respectively, in net passing yards per game and net passing yards per play. But they are second (behind only the Colts) in lowest percentage of passes intercepted, and their defense ranks first in third-down efficiency and scoring D. Still, Kansas City has to figure out how it would rally against an opponent that is not starting an undrafted quarterback.