While the exact list of players available as compensation will likely remain unknown, the Cubs, not surprisingly, have not put shortstop Starlin Castro or pitcher Andrew Cashner out there. Chicago will have to provide compensation to Boston and San Diego. Former Red Sox general manager Theo Epstein resigned from the team with one year left on his contract to become Chicago's president. Meanwhile, Padres general manager Jed Hoyer is expected to leave and join Epstein with the Cubs.