Good, effective teams are not formed out of thin air. They can not be willed into existence.
If you're finding yourself in a struggle to lead a team that is disorganized and lacking cohesion, I want to recommend a book to you. Lloyd Fickett and Jason Fickett's The Collaborative Way: A Story About Engaging the Mind and Spirit of a Company.
The Collaborative Way is about the competitive advantage a team can gain by incorporating five principles that directly correlate with resilience, change management and leadership fundamentals, including Listening to your team, speaking straight to them, supporting one another, honoring commitments, and acknowledging and appreciating the contributions of your team.
The principles in this book are simple to understand, and are a great guide to changing your workplace's culture to something that is meaningful, cohesive, and successful!