Just throwing an idea out there. Let me know what you guys think.
Implement a vote to kick player during champion selection in ranked. During the champion selection phase, let there be an icon next to a summoner's name that allows the team to vote to remove the player.
Reset the champion selection order.
Switch a random player from the enemy team over. (Both sides must agree)
Make this function cost RP or LP
To avoid players who refuse to communicate, auto lock champions, or toxic.
Save players time in the long run, another 3-5 minutes to find players instead of waiting 20 minutes to a full game to deal with the same annoying player over and over again.
Keep your blood pressure low.
If you have any other suggestions that may make this more practical, please post your suggestion.