Yes you can win Doom Bots lvl 5 with a DC (4v5) and a horrible jungler (3v5)

I dont know how considering 3 melees. Thank goodness we had Xerath on the team. And to be honest, with a jungler yi who basically insta died in fight this was closer to a 3v5 than a 4v5... just sayin

http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1464397954/31986136