Teams in the Age of Specificity
When most of your training is comprised of specific workouts then obviously you will be training solo a majority of the time.  The best way to gel as a team is to do a lot of races together.  Set aside a day each week for a group ride and don't limit it to just your team, make it competitive. This is a good time to work on your sprints, etc. A week long training camp early in the season is good, too.