Well you knew the coach was leaving. You have been through this before, so you could have managed your handling of it better too.
I hate when people expect their kids hobbies, that are not businesses, to be run like businesses.
You may not have the required skills to be a coach. So get them. My son plays for the local rugby team. I do the food every weekend, the money raised funds. I have done the first aid course and coaching course and help out at training. Lots of parents have. The reason we did it, is looking forward what happens if a coach or first aidee becomes ill, or leaves or simply doesn't want to commit to it anymore.
We planned forward. If we don't have enough first raiders, there's always someone who can jump in. We paid for our own courses, as the club didn't have the money to train spares. For the couple to parents that couldn't afford it, we fund raised.
Your daughters sports team is not a business. Getting volunteers isn't easy and you need to forward plan. There is plenty that people could have done in anticipation of this. Especially since the team has folded before.
Parents who only turn up for matches and the high profile stuff like running fundraising, annoy me. Especially when they are then the first to criticise when something happens that they think 'could have been done better'.