Who is Tiemoko, Boubacar, Bachiru from God's Bits of Wood and what is their importance?

These three characters are active in the striking union, each playing different roles in the relationship between union and management. Tiemoko is angry and passionate but eager to learn from the example of Bakayoko. Boubacar is not as smart as Tiemoko but just as passionate, able to use his great strength to enforce the will of the union leaders. Bachiru is pro-management, obsequious, and a coward, speaking up for himself and his beliefs only when he feels it's safe to do so.