Allow a single role to be picked

As a jungle/support player I would really like to have the option to be able to pick a single role in the que.

The reason is simple, if I want to play either jungle or support I will get support 99% of the time and that's unhealthy, because people that want to play 2 roles with a support role in it will get a support role nearly every single time.

So what happens, people start picking their main non support role and another role they're not really bad at, but not good either. Situations where people say "Sh*t, I'm ADC I can't play adc I wanted jungle", happen way too often and nothing is more frustrating than a support having to play with an unexperienced ADC who has no idea what he is doing.

Sure in bronze this won't make a lot of difference but when you get to gold+ you just can't have inexperienced ADC's, because you WILL get destroyed. It's bad for mid, top and jungle too, but supporters will suffer the most. Ofcourse this problem also goes for people who pick support just for shorter que times.

Please RIOT, make it possible to select a single role. I think people would rather wait another 5 minutes than to be forced into a role that's just not beneficiary to the team.

I mean, this is ranked we are talking about, you don't ask a quarterback to be a center right... (excuse the sports metaphore, I'm european, but I thought a soccer reference wouldn't fit)