please help me answer this question

Exercise - The Rejected Team Leader You have been a team leader at a big-box electronics store for three years, and the team you supervise is great. Everyone is hard working, gets along really well, helps one another, and gets the job done. The members go out together after work and are good friends with each other and with you. A week ago, your team was assigned exclusive responsibility for designing and setting up the upcoming product display for tablets and other mobile devices in an entire section of the store. Crystal-one of your team members -was especially excited about the project. She has been taking online courses at the local community college and wants to move into advertising design as a career. Because the team works so well together, you had expected the whole process to go smoothly with a bunch of great display formats figured out for you to choose from. But by the end of the week, you'd only received one proposal from the team, and it wasn't very good. You talked to each team member individually. They all stood behind the design the team had submitted. They got mad at you for suggesting that they come up with another design, and wouldn't even listen to you. They wouldn't tell you how they came up with the design, how they figured things out, or share any information with you at all. Even though you are the supervisor, you are also a friend, so it was hard for you when they reacted in such a hostile way to your feedback-particularly in light of the looming deadline. Questions 1. What is happening in this team? These employees know and trust you, but you can't even get them to talk to you about what's happening - why? 2. What can you do to get through the wall they've put around themselves? 3. Why have you been shut out of the team in this way