Lol, on the playground, the formation would normally be 1-1-9. All the kids would play as a striker, the one defender is usually the incapable one and the goalie just doesn't get a choice to ever play in the field lol.
There is a meme about this, unfortunately in Greek, i’ll try to transfer it to you, it applies for every Greek hood-football game:
No1-GK= The the most “fat” friend.
No5-CB+SW= the most killing guy, he has the less technique, he likes wear real football boots with metal spikes usually and do real sliding tackles in concrete courts. He loves fighting and adores the Uruguay defending of the 30s. (1930). Sometimes he attends martial arts courses in his free time, kickboxing, MMA, etc.
No2+7-RB+RWB+RMF= simply the fastest right footed friend with the best stamina and patience to not join the attack and overcrowd the others.
No3-LB+LWB+LMF+LWF= the ONLY left-footed guy, he takes all left side alone!!!!
No6+8-DMF+CMF= The friend with most teamwork mentality, he tries to bring the football immersion in the hood, connects the one defender with the rest team who are walking in offense, he is box-to-box ( if he doesn’t smoke

). He usually is the only guy who falls deep to assist in defense and the one to take the blame in goals conceded!! Miraculously the only guy who plays for his passing stats and knows what an assist means! He should be a MINANDA but he is forced to be a Makelele (Real Madrid era).
No10-AMF+SS= the most technically gifted guy, plays strictly classic10, although he passes very rare , he never marks a player or defends and he takes all set pieces FK,CK, except for PKs, which penalties are taken by a next
“category guy”. He usually plays for a real football club, 11x11 in the youth academies.
No9-CF= The most friends in team, other is more lucky and has scoring instinct , other is faster than the others, other has Adriano-like shooting, other is a dribbling juggler. Everyone stays near the box and wait to score. When this friend is found by coincidence, being marked in the flanks, he will ignore teammates support and he will try to play the 1-2 pass with the wall (wall dribble) or if not wall, he will try some Mumbo-jumbo trick like rainbow-flick.Ir maybe he will try to shoot the ball on opponents body to take an intentional throw-in or corner kick , with less success usually.

Often during the course of the match, the One of the CFs that wasted the most chances and gathered the most anger, is yelled by the others to leave the Offense and go back, with the iconic shout : “GO HELP THE DEFENSE MO-FAKER!!!and don’t pass the midfield line again”
SPECIAL CATEGORY
-The Ball owner!
No*-WHATEVER he LIKES! permanent CF striker and permanent offside= he stays front of the opponent goalkeeper even if the other team has a final minute golden goal corner kick or a penalty kick= The ball owner!!! The guy who brought his own ball, which his dad brought him, usually an official replica Nike,Adidas,Umbro,,Select,Puma etc from some official event CL,EL,euro,mundial etc. He often wears official team kit Barca,Real,Etc with name and number and he knows very little about football, he usually wastes the team opportunities, he collides with other CF while they try both people kick one single ball, he dives with the lightest touch when a defender steals the ball from him.
Finally if you don’t give him the crazy penalty he demands, or if you don’t let him take EVERY single penalty, or you piss him of , shouting at him cause he body tackled you , while you dribble the GK and you were heading to score in empty-net, and he achieved to waste your effort , shooting far outside from the goalpost, maybe even over the rooftop of the neighbors house near the court you play, he just gets angry and takes his ball and goes home, interrupting the much.
Sometimes, if there is a little piece of good inside this guy, while he decided to leave with his ball offended, he might let both teams play penalty kick to decide the winner despite any previous score, and of course during the PK he will not take part, he will stay near the goalpost watching the PKs, booooohh shouting at his former teammates who insulted him and not worshiped him like a god and he will support any effort from the opponent team.