any chance of a return of the coaching corner videos there Shane?

Question please anyone...1st of all sorry im more of a hurling fan so not to up with football......please. My 14 year old daughter is being sort of played as a sweeper behind . She's in fullback but is being told to sit back when the ball is coming in. Which is now leading to her not marking her own player and retreating back sometimes right in front of the keeper 🤔 I've tried to explain to her that's She's leaving her player free to collect the ball and run at goal.. I did say to her during a game to stick to her player but her Coach told me she was doing what she asked her to do.. now I'm not one e of those parents that shouts crap from the sidelines.. but she's starting to lose interest because she's blaming herself for the other team scoring so much.. I know the coach is good and has 15 players to watch. But can anyone please share a link or example of what she should be doing please . She will not listen to me and I don't want to be a pain to her.. thanks