Please read the case below and answer both the questions that follow.

Sarah, a recent graduate, secured a position at a reputable design agency. She was assigned to a project team responsible for creating a new branding concept for a client. however, Sarah noticed a lack of cooperation from her team members. During brainstorming sessions, her suggestions were often disregarded, and her attempts to engage with the team were met with reluctance. Despite her persistence in trying to contribute meaningfully to the project, she felt excluded and found it challenging to integrate into the teams's dynamics.

Question: Analyze potential reasons behind the team's reluctance to include Sarah and evaluate Sarah's approach in handling this situation. Assess the potential impact of her interactions on her future collaboration within the team.