CoachByrd:
Don't worry too much about what your head coach doesn't know. Just do your dead level best to get as much info to the kids as you can... You don't have to go against him if you can get him to agree that there's more than one way to skin a cat.
Use your experience as a good thing for the players... not as a hammer to get your way.
Example: If he's not up to par on balks, you say to him, how about I take a few minutes today to go over some balk stuff with the pitchers??? Or coach, carve me out some time in the next day or two to go over balk stuff with everybody so our baserunners and pitchers will be up to snuff.
Let's find a positive here: you can instruct him right along with them... he's going to see that you have experience that he doesn't have...
By the end of the year he could learn a lot and you two might be a good team (he may have organizational skills or personnel skills you can gain from)....
Good luck and stay positive...