It seems that Hideyoshi made both factions by giving them tasks which were appropriate to their abilities, but this separation led to a split of TOYOTOMI vassals after Hideyoshi's death.
秀吉としては個人の能力に見合った仕事を与えることで両派を形成したのだと思われるが、両派を分断したことは秀吉の死後、豊臣家臣団の分裂を招くことにもつながった。