  We calibrate a Kuramoto model inspired representation of peer-to-peer
collaboration using data on the maximum team-size where coordination breaks
down. The Kuramoto model is modified, normalising the coupling by the degree of
input and output nodes, reflecting dispersion of cognitive resources in both
absorbing incoming-and tracking outgoing-information. We find a critical point,
with loss of synchronisation as the number of nodes grows and analytically
determine this point and calibrate the coupling with the known maximum team
size. We test that against the known `span of control' for a leader/supervisor
organisation. Our results suggest larger maximum team sizes than early
management science proposes, but are consistent with recent studies.
