Success developing raw prospects leads Chiefs to try again with two more

In 2013, the Kansas City Chiefs took a chance on a young tight end who played only basketball in college. Now Demetrius Harris is their backup to Travis Kelce.

In 2014, the Chiefs took a chance on a young offensive lineman who played college football, but in Canada. Now Laurent Duvernay-Tardif is their starting right guard.

The Chiefs hope they can develop linebacker Efe Obada, who spent part of 2015 on the Cowboys' practice squad but did not play in a regular-season game.Perhaps emboldened by these successes, the Chiefs in recent weeks have signed two other players with decidedly non-traditional football backgrounds. Neither linebacker Efe Obada nor defensive lineman Tautvydas Kieras played…