We all owe it to Ladybowhunter38 to answer this one at least her father in law recovered the deer that he shot and it seems that he is willing to make an effort to improve his shooting.

First of all your friend needs to pack it up for the year until he becomes a better shot and if he is not willing to i would find a new partner I hope you are not going gun hunting with your friend one lost deer happens to all of us two could be a mistake but four deer in one season that is just plain irresponsible and a pure insult to our sport of bowhunting and archery