In project management, typical problems with resource assignment and manpower can include:

1. **Over-allocation**: Team members being assigned too many tasks, leading to burnout and decreased productivity.
2. **Under-allocation**: Resources not being fully utilized, which may lead to inefficiencies and wasted capacity.
3. **Skill Mismatch**: Assigning tasks to team members who do not possess the necessary skills or experience, resulting in lower quality of work and longer completion times.