Ultimately there does have to be someone (or some small group) where 'the buck stops'. That's who assigns the other tasks, or at least spawns them and sets default ownership + deadline. (So that the tagged individual can either produce a good alternative, or at least why they're not a good fit.)
No you don't. Allow people to take on the tasks by themselves, (agile style) distribute unwanted ones at random at a deadline.
But how do you determine what tasks to do and what the scope thereof is? When they're done? That's what most our meetings are about, :p
Ultimately there does have to be someone (or some small group) where 'the buck stops'. That's who assigns the other tasks, or at least spawns them and sets default ownership + deadline. (So that the tagged individual can either produce a good alternative, or at least why they're not a good fit.)