Yuan Shu, apparently dissatisfied that his cousin Yuan Shao was elected coalition leader and received all the prestige that came with his appointment, insulted his cousin as "a family slave" and "not a true son of the Yuan clan". Yuan Shao was predictably angry at this. In 191, he named Zhou Yu (Renming) as Inspector of Yu Province, a title to which Sun Jian was entitled, and sent him to attack Sun's territories in Yu Province while Sun was away.