Too many games have been lost due to the enemy having a tank and not us. Too many of the ranged jobs, which is basically all of them with the exception of a few melee are rightfully too afraid of getting onto the crystal because they'll be focus and killed. There needs to be some sort of system in place that forces 1 tank, and 1 tank only on every team. Even at the expense of queue times. Maybe this isn't an issue at very high ranks but it's really hard to climb when you have a bunch of babies who refuse to touch the crystal on your team..