Is there any way to win with 4 feeders ?

https://www.youtube.com/watch?v=jeyc6fGresM

yes if you get fed up to oblivion and carry your team it works... (My experience)

yeah I saw my RL friend do it. see his olaf game http://na.op.gg/summoner/userName=bzrkz https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2830795296/34911309?tab=overview

aka the enemy team surrendered when a few too many hit yes on the troll /ff vote while smashing