The Cubs and Red Sox have requested that their nearly three-month stalemate over compensation for executive Theo Epstein be settled by commissioner Bud Selig, according to sources. The move was apparently initiated by Red Sox president and CEO Larry Lucchino late last month, one source said. At issue is what constitutes the "valuable compensation" the Red Sox say they were promised, according to a source familiar with the team's correspondence with the league. Epstein left as Boston's general manager and joined the Cubs as their president of baseball operations.