Why would that be weird. Alot of girls like authority figures. They have a lot of power and influence on the players that they coach. It is someone who you can look up to. Double cool, if the coach is good looking. wink, wink. But, consider the age difference. Not cool if your friend is not of age, and the coach is totally way beyong her years. It's okay to flirt and talk to him/her, but nothing more.... you know?