Daily Chinese Idiom Guessing Game
A mix of good and bad, typically describing a group where not all members are of the same quality.
莠狗尾草，很象谷子，常混在禾苗中∶人坏人都有，混杂在一起。
清·李宝嘉《官场现形记》第五十六回且说彼时捐例大开，各省侯补人员十分拥挤，其中鱼龙混杂，良莠不齐。”
The candidates for the job were a mixed bag, with some highly qualified and others not so much.