Teamfight "tactics"? more like teamfight gacha.
Seriously, why did they make the item drops random? How does that involve any tactics? Not only that, they made it so random that after the first 3 rounds of PvE, someone may have 1 item, another person may have 6, like holy shit?
If the game is gonna be anything equated to auto "chess" or teamfight "tactics" they need to let us build a team with the item we want, that would actually be tactics, counters, fights.
As is right now, its basically find the items then build a team around it and items really should not be the deciding factor in choosing what kind of a team to build.
You get to late game, top 3/4, you need to start building counters but nope, if you dont get certain specific drops, you CAN'T counter certain builds, period. Doesn't matter how good of a team you built, doens't matter if you KNOW how to counter it, if the other guy was lucky with items to counter your team with multiple magic resist or blade dancer and you've only been able to find enough item parts for 2-3 core items the entire game its over. That involves 0% tactics 100% luck.
Long story short, winning in this game is almost entirely dependent on random item drops, not building up a solid team. Don't call it Teamfight tactics.