I have a boy that very good only 5'9" that he can jump, but they are playing a box in one what plays can i use for him.

Check this out -

http://www.coachesclipboard.net/Boxand1offense.html

A lot of coaches continue to run their man to man sets, especially if they run a motion series with lots of movement and screens. I believe it depends on the rest of your team. Do you have any outside shooting threats or post player that can score?

If not, screen the chaser and extend the zone by moving and swinging it.

One other thing we did was to put him on one wing and overload the other side for our next best shooter. Have the point guard attack the top guard and then the post player has to decide who he is going to cover... the man in the post or the wing?