Mistakes are inevitable. Everyone makes them, including general managers of MLB teams.

They come in all shapes and sizes. From overpaying for a free agent to trades general managers wish they hadn’t made to ignoring a glaring need on the roster, errors occur far more often than even the most honest baseball insider cares to admit.

In some cases, those mistakes are even deals that general managers didn’t make, overvaluing a prospect who ultimately doesn’t pan out, while the veteran piece they were potentially going to trade for would have been the difference between a playoff berth and watching the postseason from their living room.

What follows is a look at the one critical mistake each of MLB’s 30 franchises needs to avoid this offseason.

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