How should XP roles be distributed in small teams? Some roles can be occupied by the same person, while others cannot.

Compatible pairs:
    Tracker/Manager
    Coach/Programmer

Incompatible pairs:
    Customer/x (where x = Programmer, Tracker, Coach, or Manager)
    Manager/x (where x = Programmer, Tracker, Coach, or Client)

''Confused - Tracker/Manager is compatible but Manager/Tracker is not?''

What about all other combinations?

Related Wiki:
     ExtremeRoles
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