Answer: Norming stage
Step-by-step explanation:
This group may only reach the norming stage of development at their work which is not the final stage that is considering success of the group.
This group is having a problem because they are not equal and since the member of the group is not effectively contribute to companies success, other members of the group won't be able to appreciate their unit.
During this norming stage, workers can start to notice things about their team and how they are working in the group. If everything is okay with the members, then they can pass on the next stage and that is the thing that is stopping this group.