private void CreateLocalCopies(DebtManager debtManager, PaymentManager paymentManager, bool applySnowballs)
        {
            _localDebtManager = new DebtManager();
              _localDebtManager.Debts = debtManager.CloneDebts();

              _localPaymentManager = new PaymentManager();
              if (applySnowballs)
              {
            _localPaymentManager.WindfallEntries = paymentManager.CloneWindfalls();
            _localPaymentManager.SalaryEntries = paymentManager.CloneSalaries();
            _localPaymentManager.SnowballEntries = paymentManager.CloneSnowballs ();
              }
        }