The answer is all of these are required for effective team.
Step-by-step explanation:
Teamwork, flexibility and creativity are the three keys for successful team. For a successful team each individual should have a role and be equipped with specific skills to fulfill it. The members should build trust and respect each other's place within the group.
The effective teamwork is built based on the clear direction, open and honest communication, Mutual support and trust, and common goals.
The group of people with specific role and skills are committed to work in a common job with high levels of collaboration and innovation, produce superior results .
Some of the characteristics of effective team work are focus on the development and accomplishment of common goals and purposes, Focus on behavioral other than personality. Expect and exact participation of all.