When teams prepare during the offseason for the upcoming regular season, they do all they can to put the best product on the team with the goal of winning a World Series championship.
At least in theory, that is.
In 1786, writer Robert Burns penned the poem To a Mouse, in which he wrote:
The best laid schemes o' mice an' men
Gang aft a-gley
To put in layman's terms: "The best laid plans of mice and men often go awry."
In baseball, plans are often made with the best of intentions, only to see those plans suddenly go awry. Or, in some cases, things weren't done by teams that they later regret.
We will take a look at each team's biggest regret thus far in the 2012 season, either through decisions they made or actions they didn't take.