Kansas City’s offensive coordinator spoke about what he wants to see from his rookie running back. The Kansas City Chiefs’ offense continues to roll coming off their big 30-27 Sunday Night Football win against the Los Angeles Chargers in Week 11. Many things are going right for Kansas City’s offense — but in recent games, a key factor in its effectiveness has been the improvement in the team’s running game. On Sunday, running back Isiah Pacheco spearheaded the ground attack, finishing the game with 107 yards on 15 carries. On Tuuesday, offensive coordinator Eric Bieniemy spoke about what he has…