You can manage a deer herd with one buck greater than 13" and one spike tag. Shoot all the legal does you have and let the bucks get some age on them if you can.
Just shoot it twice. Once to drop him then shoot again and give him a haircut. No seriously. 2 years he will be a shooter. I have one out here now.. tall tall 6 pt. About 5 inches shy from 13". Now that sucks. And he is 4