The Blade’s Will Harrison: Playing Overwatch, much like any team-based game, requires putting a lot of faith in strangers to have any success or fun. Blizzard is finally attempting to correct course and find a way that not only takes into account the professional league, but also the shmucks such as myself who play non-stop and want a fair game with no drama.
Source: N4G PC Role lock is the 2.0 update 'Overwatch' desperately needs