AI bots have no place in skirmish mode.
The bots are terrible, constantly screw up the team's laning and feed the other team gold by suiciding. Why the hell am I being forced to play with them in skirmish mode? The entire point of multiplayer is to play with other humans and if I wanted to play bots I'd stick to single player. As it stands the only way to play with an all human team is to through custom games which are shaky and suffer from constant "failed to join game"s and nat failures. All I can say is that this was a terrible design decision.