You can't just switch on teamwork. It takes time for a new team to "gel" and work to its full potential. What's more, team members go through stages as they move from strangers to co-workers. Bruce Tuckman's Forming, Storming, Norming, and Performing model describes these stages. When you understand Tuckman's model, you'll know how to help your new team to become effective – faster. Let's look at how.