assign (v)
▪️ to designate or set apart something for some purpose.
A large sum of money was assigned to R&D budget.
I've assigned the most experienced team members to your project.
▪️ to appoint or select someone for some office.
She has been assigned to this project.
▪️ to give something as a task.
We assigned 5 extra team member to this project to ensure that we complete it on time.
delegate (v)
▪️ to entrust (a task or responsibility) to another person, typically one who is less senior than oneself
We delegate routine tasks to the newests team members so they can get a lot of hands-on expereince as quickly as possible.
❌ We delegated 3 team members to the task.
✅ We assigned three team members to this task.
✅ We delegated the task to these three team members.