Matchmaking and Draft/Ranked Queue Changes

While in queue for a ranked/draft game, you just need to hope you get your primary position. What if when a match is found, there is something that pops up telling you if you got your primary or secondary position. Then it says "Will you accept this position?" or something along those lines. Often times the position i main is taken by somebody else and I am forced to play my secondary role. This can get irritating while playing ranked because I am far more comfortable on my primary role than my secondary role.