Shane Dermott is a manager at a software design firm that develops software programs for clients using multiple teams of specialists. One of his most successful teams has been performing very well for years and so it came as a surprise to Shane when he noticed a sharp drop in the team's performance. He decided to speak with the team members individually and find a solution. After interviewing all $7$ team members, he determined that one of the new team members was mainly performing routine administrative tasks that were hardly visible to any of the other team members and felt other team members were not happy with his contribution to the overall workload.

Applying the team effectiveness model, discuss possible reasons for the current team ineffectiveness.

What can be done to resolve the current situation?