Appellate courts do not retry cases. They review a record for legal error, and they review only the errors that were properly raised below. A ruling that was clearly wrong is often unreviewable simply because nobody objected, or because the objection was made on a different ground than the one argued on appeal.
That is why appellate work begins at the trial level. The lawyer standing up during trial is simultaneously trying to win in front of the jury and building the record that an appellate court will later read. Those two jobs sometimes pull in different directions, and knowing how to serve both is a distinct skill.
This article explains how error is preserved, what gets lost when it is not, and why the choice of trial counsel shapes your appellate options before an appeal is ever contemplated.
