Tank Agro Indicator

Hear me out... we know about the agro indicators, right?
Green = No Agro
Orange = Agro, but not fully on you
Red = Agro, fully on you

Meanwhile, tanks can't tell which mobs the other tanks fully have agro over and thus this will be my suggestion.
When you are a tank, you will see a 4th agro indicator: blue.
If you see mobs with the blue agro indicator, then another tank has agro on that mob and you don't need to taunt off that person. Only focus on the red indicators whilst the blue indicators are for the other tanks. Any green indicators shown mean none of the tanks have agro on that mob

The idea seems to have some merit, but I also wonder if it's sort of saying "Hey OT, I don't actually trust you to pick up those adds like you are supposed to, while I deal with the boss".

Comes a point that we need to somewhat trust the other people in the party and not overly concentrate on micromanaging their jobs too much. Goes to DPS too, if a DPS has red on a mob so you have green, you sort of need to trust they know to run it over to you so you can peel it off them easier. Although in that case, we can do a little if paying attention like we should.

Another complication is maybe ... network traffic, the full list of what person has what agro now needs to be shared to all others, so that the client can then decide to draw it blue or green, depending if it's tank or dps... and network traffic causes lag over the board. An ethernet cable only carries so much data before everyone on the server is hit.