Abandoned Games

I would like to propose an option to be implemented by Riot to address the rising number of matches in which one or more players quit the game within the first 20 minutes. My idea is that if a player leaves the game within the first 15 minutes, the team on which the person was assigned can then vote to leave the game early, requiring a 3/1 vote of yes to pass. If the yes vote is confirmed a timer will begin counting down 3 minutes. If the person who left or disconnected reconnects within those 3 minutes the timer would end and the game would continue as normal. If the person does not return then the match would end. It is at this point I leave it to Riot's discretion on the following two possible outcomes of the surrender vote: A) The match is marked as a draw with no loss/win penalty would apply to the teams, to prevent abuse, the person who left would receive an immediate ban of 1-2 days, scaling proportionately to a permanent ban if the behavior persists, or B) it counts as any other surrender would. Conversely, the rules can be set so that option A applies to non-ranked and option B applies to ranked, to prevent extreme abuse. While not perfect in application, I believe this would be a very good course of action by Riot to curtail the rising number of games in which one or more people leave the game causing unbalance and upset amongst players affected by these incidents of unsportsmanlike conduct.