Wandy Rodriguez was only worth half a win for the Pirates down the stretch last year. That low value is more common than you think. (Photo by: David Hague)
There's one thing I've never understood about the trade deadline. A team contends for the majority of the season. They hold their own against other contending teams, and beat the weaker teams. You get a situation where a team has the best record in the majors on July 31st.
Then everyone says they need to make a trade.
As if everything they've done in the first four months is meaningless, and the only way they can continue to win is to add that big bat or that big arm.
We know so much about the values of players. We know that a star player is probably just bringing 5-7 wins above a replacement level player. We know that someo...
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