"Red Line, Blue Line, Bottom Line" looks at the issues at stake in the negotiations for a new collective bargaining agreement between the NHL and pro hockey players. In comparing the NHL to other major sports leagues, Marc Edge suggests that hockey could benefit from adopting the business strategies of its football and basketball cousins. The owners want a salary cap. The players want the right to let the market determine their salaries. According to Edge, revenue sharing - between big-market teams and small-market franchises, between owners and players - could hold the key to long-term prosperity for the NHL.