KANSAS CITY, Mo. — The Kansas City Chiefs are on the verge of something historic, advanced numbers expert Aaron Schatz says. Schatz, chief analytics officer for FTN Fantasy and creator of the all-encompassing DVOA statistic, says if the Chiefs win Super Bowl LVIII against the San Francisco 49ers on Feb. 11, they’ll have completed a stretch unlike any other NFL team. “I think it should be remembered as one of the best postseason runs ever,” Schatz said. His data gives the backing. According to his DVOA numbers, no NFL team has ever faced a playoff road as daunting as this one. The Chiefs — rank…