With a deadline approaching, all seven members of Sharon's product development team were working round-the-clock and still the work was not completed in time. After the project was completed, Sharon spoke individually with the members to determine the cause for this delay. Many members complained, saying that they believed that the work assigned to them is hard for them and they do not believe in their own ability to do it. They also say that they lack a teammates who could give advice or do some mentoring.

This team has issues related to ________.