Bad hires cost more than just money. On average every article and research document you will read, lists the cost at a minimum of 30% of the positions annual salary.
But there is far more than that - lowers morale, lowers engagement, big impact on the workplace culture
AND
More often than not, the poor hiring decision leads to managers keeping that bad hire longer than they should - costing even more.
Recommendations - listen to todays #YourMorningCommute for specifics.