Making the ranking system easier to understand

They really need to define the ranking system and give each role something special so that support mains don't feel like they have to ks just to get an S rank. So here's some ideas i came up with for those roles that seem a bit...harder to get CS for:

Support - Track number of wards that are put down somewhere around a ward a minute would be a great starting point and at least 5 total pink wards placed. An average of about 1 assist a minute so have the standard be 30 assists at 30 minutes.

Jungle - Track kills and Assists and also track the number of camps taken down as opposed to number of CS, since they do not get as much cs as a typical laner. Maybe have a tracker for enemy jungle camps.

General Tanking champs - Champs that don't dish the damage but can take it pretty well, why not implement something that does a ratio based on "how much damage has been dealt to you divided by the number of death's you have" so for example if a Malphite takes around 5000 damage and only has 2 deaths well his score would be 2500, and let's say for an S rank it goes up about 500 a minute?

Now this is PURE speculation and i will admit IM NOT GOOD WITH NUMBERS AND ESTIMATIONS. So hey respond with something like "eh maybe the ratio for damage to death should be higher on the tanks" or something like that or something along the lines of "maybe this system would be better."