Former Royals GM Herk Robinson leads that list with nine playoff-less seasons .
If Kansas City fails to advance to the postseason in 2013 , Moore will have one of the five longest GM tenures without a playoff appearance in the last two decades .
Former Kansas City GM Herk Robinson leads that list with nine playoff-less seasons .
If Kansas City fails to advance to the postseason in 2013 , Moore will have one of the five longest GM tenures without a playoff appearance in the last two decades .