description of VORP (Value Over Replacement Player) What Is Replacement Level? Baseball is
a zero sum game. One team always wins at the expense of another. It is
not possible for one team to win without another losing. In order to win,
a team must be able to produce more runs (or prevent runs from scoring)
than the opposition. It's success in producing wins is directly tied to
its ability to produce more runs than its opponent. Any competitive advantage
a team has must, in some way, translate to better on-field performance
to be valuable....