This is not the year to sit around and wait to see how a team's chemistry develops.
A 48-game season means there is little margin for error. If a team doesn't get out of the gate quickly, it can find itself in a deep hole.
That's why all personnel moves have to be considered. In some cases, a minor league call-up or two might do.
But in other cases, teams have specific weaknesses that must be addressed through trades.
Here's a look at seven teams that must make a deal before the trade deadline.