In fact, some so-called “teams” don’t work - for one of two reasons:
They’re not supported or encouraged by the surrounding organization and are not recognized or rewarded for their efforts.
They’re not really teams - but merely “groups”, or “pseudo” teams.
What do we mean by the terms “group” and “team”? Generally, a “group” is two or more people who have something in common. Many such groups - e.g., people stuck in traffic together, all retirees, or people who like vanilla ice cream - would never be mistaken for “teams”. In business, however, a working group often is mistaken for a “team”.