If the numbers add up to justify the layoff, then doesn't that mean that in the time leading up to the layoffs the numbers didn't even come close to adding up?

If the numbers add up to justify the layoff, then doesn't that mean that in the time leading up to the layoffs the numbers didn't even come close to adding up? I'm not sure the transparency and fiscal competence the company demonstrated to justify its layoffs would dazzle me enough to make me miss the fact that they had overhired by 3x or more.