Look at any video of a League Tournament
The 2014 World Championship: Moments and Memories
You should notice something that every player in tournaments has...
Headsets!
I know this has been talked about a lot in the past but I just came back from playing DotA 2 for awhile and the biggest thing that game has over League is integrated voice chat. Almost every game I've played in DotA 2(normals not ranked) I've won when we were using voice chat. Communication.
Sure League has smart pings. But that's not enough for real split second coordination. That's why all the teams in the World Championships are using headsets. That's why League of Legends needs integrated voice chat.
Please post on this thread and show support for this. Maybe it will get closed down but hopefully not :)