The end of the 2018 season is rapidly approaching, and there are fewer answers in the Reds’ starting rotation than there were at the beginning of the year. It’s the most glaring weakness remaining for the team as it hopes to end its rebuild in the near future. The offense is one of the better units in the National League and will get even better with Jesse Winker and Nick Senzel for a full season. The bullpen is vastly improved. But the rotation is significantly further behind — enough so that the club is en route to its fourth straight 90-loss season.