A Ranked "Team Builder"

It's been talked about enough that we all know team builder the way it is now just wouldn't work at all for ranked. But there is a simple solution. For a ranked version of "team builder" you would queue up for a position not a specific champion. So that way it would set you up with people who all queued for different rolls. Then the pick/bans would happen as normal after that. Worst case scenario is that trolls will be trolls I guess but that will happen no matter what. There could also be incentives to play rolls that are more uncommon. The most obvious one is that there is a quicker queue time but other things riot could add for incentives could be a % increase in IP earned based on how uncommon that specific roll is at the time of queueing. What do you guys think? I think it's a best of both worlds situation but there is always going to be people that prefer the original system the best and I don't blame them. Why change something that works right? But either way it's just my idea on the matter.