From what I've seen it depends on how long the situation has been lingering on. Teams have ups and downs, phases where things just hum along and phases where ma

From what I've seen it depends on how long the situation has been lingering on. Teams have ups and downs, phases where things just hum along and phases where matters are more difficult. If it's just a phase and a fairly recent development it's possible to turn things around, especially if there's still people around that are motivated and want to change things. A clear diagnosis of what's wrong would be the first step. However, it gets harder to change things the longer the problem has been around - everybody retired to his own little world, blames the rest of the team for failures, too much blood shed between the individuals. It's very hard to climb back up from this hole.