Comment by inverse_pi

Does anyone know how random drafting work? If they're truly random, i.e. randomly picking 5 heroes out of 18 (CM, DP, ES, Gyro, Lich, Lion, Necro, Qop, Razor, Riki, Nevermore, Slark, Sniper, Sven, Tide, Viper, or WD) then it's much less about teamwork. What if they end up with Razor, QOP, Nevermore, DP, Gyro? The problem here is in Dota, each hero almost has a clear position in the game, much like soccer. Having both teams randomly pick 5 heroes would probably ruin the game, and make it really difficult for human (think covariate shift), whereas the bot is probably trained using this distribution