Ten MLB teams qualified for the 2018 playoffs. Many others had decent-to-promising campaigns.
Yet, all 30 teams committed at least one significant blunder—a move they made, or didn't make, between last offseason and today that could haunt them going forward.
Let's assess every team's most costly misstep and why it must be fixed in the months ahead.
American League East

Baltimore Orioles: Not committing to a full-scale rebuild
The Baltimore Orioles entered the 2018 season under the assumption they could contend in the American League East.