private decimal MemberStrength(IProgrammer member)
        {
            var rank                = member.Details.Rank;
            var skillIndex          = Array.IndexOf(member.Details.Skills.ToArray(), _language) + 1;
            var leader              = _members.First();
            var degreesOfSeparation = leader.Equals(member) ? 1 : _degreesOfSeparation.Between(leader, member);

            return(rank / (skillIndex * degreesOfSeparation));
        }
 public int DegreesOfSeparation(string programmer1, string programmer2)
 {
     return(_degreesOfSeparation.Between(GetByName(programmer1), GetByName(programmer2)));
 }