I am really surprised the overall ratings for this is so low so far. I think this is the best new show out so far.
I'd call it a modern day Bad News Bears. The writing is really good. Many good laughs each episode and it also has a deep story line that will need to come together by the end of the season. Maggie Lawson is plays the perfect down on her luck, tom-boy mom who really takes loves her son and wants what's best for him. James Cane is the perfect fit for the grumpy Granddad/Dad/ex Baseball player who teaches the kids how to become better player/kids in unorthodox ways. He also is really good at showing a caring side, without showing it.
If your tired of the same old sitcom with little depth, then this is the show for you. Give it a shot and I think you will find you like it.
I hope it sticks around. It's a really good show.