Resolve on marksmen in 2019
Let's see what we can get there, since now stats are not tied to the tree you choose with runes.
Many marksmen tend to scale into late game, and are getting bullied really hard by
right now, trying to think about what can be possible.
First of all, I don't think resolve will be good on
, this champ tends to have killing pressure and does not have trouble surviving the lane you should probably keep going precision primary.
same with 
probably the one who will look into resolve, explination:
Caitlyn has the lowest base attack speed in the game, with 0.543 since patch 7.11, her attack delay is the 2nd highest amongst marksmen (behind graves). Building attack speed on her will be less efficient than on other marksmen. With this there is no keystone that syngerises well with her in the precision tree.
If you happen to go into resolve, you can get grasp, and with this a lot of things can happen.
Grasp can allow caitlyn to poke laners harder, sustain more
With resolve you can get shield bash, and combine it in late game with
shield, and legend bloodline+overheal in early game. And it also works on ally's shields, which means you can combine resolve caitlyn+
shield giving bonus AD.
Then, overgrowth has been buffed for squishy champions! , it will give now 3 hp every 8 minions, instead of 0.2% max hp every 8 minions (with 2.5% bonus max hp at 120 minions)
Aftershock quinn will be a strong option, but I do not know well quinn which means I cannot know if the like of resolve runes will be stronger than domination runes
(remember that stats are no longer tied to trees).
once again, someone who will be better looking at resolve than precision.
Twitch is frontloaded, which means lethal tempo is worse on him than on other carries like
, and he can't proc it from far away like
.
Press the attack is the best option right now, but Twitch has literally no laning presence at all. His W costs too much mana and has a long cd, his E base damage has been nerfed, it's quite hard to answer back to trades as twitch especially since you need to hit a lot of time to deal damage with E (someone like jhin can just hit once and run away, and win trade because his AD is higher) .
With this said, grasp+second wind can help him in early to reach late game, overgrowth can help him in mid game against assassins.
The only problem is that shield bash will be weaker on him than on caitlyn.
Well that's it, I do not have any more idea. You can try resolve on
to help them in early game, but I think they would quite lose a lot of power from the lack of precision keystones
not sure tho.