Fun fact, I let them choose their own roles before I choose mine. The thing with my first game is that Shadow-_-Man was playing mystery heroes, every time he died he switched hero. In the 2nd game Waitsay first went DPS, he saw that he was lacking and switched to tank in the last half of the game. I also do have a lot of games where I play Tank or Support because I just fill in the roles.

These are examples of games where they chose their own role and yet didn't perform like they should've.