So, about the Chiefs’ second-half woes, here’s a breakdown. In being held scoreless in the second half of three straight games, the Chiefs have been outscored 38-0 by the Broncos, Dolphins and Eagles, losing twice. The Chiefs have had a cumulative 13 possessions, not including two abbreviated drives at the end of games: Eight have ended with punts, two on downs, two on fumbles (not counting…