The main advantage is that your organisation,project etc. will benefit from having a structured configuration where personnel work as a combined unit with clearly defined responsibilities that overlap and interlock in such a manner that one or more elements (i.e staff members) can be missing with a minimal loss of efficiency or production. For example One half of the duties of Person A can be covered by Person B and the other half by Person C, One half of the duties of Person B can be covered by Person C and the other half by Person A, One half of the duties of Person C can be covered by Person A and the other half by Person B<br />
Think of it as one of those atom cluster models with little plastic balls connected together by rods that push into holes<br />
If you connected them all in one line, the continuity is broken without an alternative path to take.<br />
By multiple la<x>yering, alternative paths are created whereby there may be a drop in efficiency but production output is at least maintained
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