Been in a similar situation coaching DDs 10u team and one year of 12u. Daughter didn't love softball as much as I did. She liked it and wanted to play it. It just wasn't her everything like I wanted it to be. Other thing, is DD (mine not saying yours is doing this) knew she could get away with being lazy and not trying as hard when I was coaching her. I purposly had other coaches do any direct correcting of her.
The only other advise I have is to read Marriards advise above. Then re-read it.
The only other advise I have is to read Marriards advise above. Then re-read it.