The thing is, there are almost no cases where a problem must be solved in some strict mathematical sense. Huge part of project management is the problem reformu

The thing is, there are almost no cases where a problem must be solved in some strict mathematical sense. Huge part of project management is the problem reformulation to fit the existing solution to the initial requirement: what do you mean it is not a clique? it's still a group of friends, 80% of which know all others, with empirically tested chance less than 5% that any person knows less than half of others.