A high school or college team has tryouts and only takes the most athletic kids. When I was a kid, I was the fat kid. I was one of the slowest runners in my school. I had asthma.
I could still jump rope, ride a bike, do pushups, kick, fight, play sports and contribute to the team and so on. When I played, I played outside. It was a different time. I was weak, but my weakness at that time was stronger than kids today because kids today don't play alone outside. They don't climb alone. They don't fight as much. They sit inside and play Playstation and their bodies don't work.
If you are teaching the most athletic kids for a school, it is a different experience from taking weak people with no athletic experience, but who want to expand their capacity. It is almost like rehabilitation. If someone wants to learn self defense but they can't even fucking hold their arms straight for a pushup, you are wasting their time showing how to sweep from DLR.
They need you to stand there and make them stand on one foot, jump, push against a pad, stretch, how to run, and so on and on.
I have three girls who play aau basketball, are very good at track-volleyball-powerlifting..
two of my girls have always got attention in basketball, as they always had good size athleticism, aggression, strength, etc etc...
they have had very few coaches who actually tried to coach them, often they let them do what they want as players because they were playmakers and capable of doing so against older kids, and the really talented kids from other area. My kids never look like they shouldnt be on the floor.
it irritated me cus i was always citing making the right basketball play, moving the ball, playing all round games, knowing when to do certain things, taking good shots .. not bad ones..having good court iq.
my other daughter moved in almost 3yrs ago, hadn't ever really played basketball other sports and was heavy/out of shape... coaches pretty much ignored her.. Not what i believe what i was told by other parents/kids.
i put her in fall ball, worked on some basic basic things; rebounding, moving feet on defense, etc etc... talked to her after every practice...bout plays, moves, awareness.. had her staying after her practice to watch a team practice..observe learn plays..had her asking tons of questions of coaches...watching games.. and after games breaking down games..telling her what she needs to do...practicing w/her alot..pushing her alot...holding her accountable.
b team her first year-alternate on a aau team-b team second season moved to a and a starter on a aau team..
but it took alot of attention and effort outside of the team, cus they focus on the talented kids, obviously talented kids; if you or your kid isnt, then they are gonna have to take it upon themselves to improve and to maximize opportunities they are given. My kiddo has some talent-across the board-but it still took alot to get her ahead; an most sports are like that, people like to work w/or train talent. They don't have an interest in working w/kids who arent obvious talents