Having an autofilled jungler in low elo is painful for real..
How does it feel when your teamates are decent with their actual given roles but your jungler isn't actually experienced at playing as a jungler he simple doesn't fill the requirements :
- Not good with the champion he is playing , maybe he took something like amumu jungler but he is an
main , so that means it is ( maybe ) his first time playing amumu - Isn't good at ganking , someone who's never played jungler at low elo for sure doesn't know when it's best time to gank and when it's best time to take drake ... etc , i am not saying low elo jungler mains are good at such things , but they can do it better right ?
- the worse part is that if the ennemy team have an OTP
he will just destroy him.
I just think that the jungler needs a player who is more capable , because the jungler role is just more complicated than other roles this is the truth , you have to be better when it comes to making decisions that help your team , you have to deal with alot of things ( doing the best clearing routes
, ganking , taking objectives and also vision and more things such as paying attention to the jungle timers ...etc ) and if you fail at it you affect your whole team , imagine giving the first blood to a shaco because you didn't clear a camp well or you had a very bad clearing route such as Red > krugs as 
and you are left with 20 % hp ? he will just give a high pressure to your team > helping the ennemy team , a good jungler would never let himself get low hp in the jungle if the ennemy team have a and no vision in the jungle..
What i am trying to say ? Please , if you see that you are bad at playing jungle just ask for a role swap there is no shame in it..
- Or if you see someone asking if someone got autofilled and you see that you an autofilled jungler tell him don't hesitate ( i say it again , i usally ask who is autofilled so i can swap with them i can fill every role and play them without problem i have champions for every role ,but alot of players aren't like me ) Most games at my elo are decided by the jungler which has the most impact.. And sorry for my bad grammar [zombie-brand-facepalm]