What do you build when you're a fed Bruiser, but your team is really behind?
I find I have this problem when I play

Do you build more damage or build tankiness when your team is behind?
I find I have this problem when I play

Do you build more damage or build tankiness when your team is behind?
The answer is none of the above. It's not your build that really has to change. It's your style. I see so many people at EVERY ELO. Watch some streams you can see this freaking EVERYWHERE where people are like 5-10k gold down and think the only way to win is to group as 5 and teamfight. The worst part is when top lane is fed, mid/bot/jungle all did poorly and they're expecting you to carry them but they won't help you win. For instance i recently played a top Nasus game where i was able to hit 460 stacks by 20 minutes. i was at 200 stacks at 12 minutes against a Mordekaiser top. And we lost the game entirely because my team didn't have braincells. The enemy team was 4 towers up on us, 1 dragon to our none. collectively up 15 kills or so and maybe 100 cs. And my team wanted to teamfight. We were down 8k+ gold. Why would you want to teamfight in those conditions? MId was 2 items down from their mid. Why would you want to teamfight? People just think teamfighting is the only way to win. It's not. When your nasus is pushing top with the split you don't fucking fight 4v5 you sit the tower and poke/run. And when they back off to recall you stop the fu**ing ports. I took two towers in one push. But my team then engages basically and lose 3 people and 2 towers and an inhibitor. Now the game is unwinnable. They're suddenly 10k-11k gold up. And they just run 3/0/2 lanes and it's over.
Moral of the story? Don't be a F**king idiot and any game is winnable. It's only over when you give up or do something so stupid you can't come back from it.
Honestly there should be a third choice called "both". I don't think it is one or another but somewhere in between.
Just build
.
Build it if you're ahead.
Build it if you're behind.
Just build it on everyone in every game.
Depends who your carries are.. If they can dish-out damage even being behind i.e
Then i'd go tanky.. If there is no hope for your carry to do any damage, then you should be that guy.. Either way, it's much more complicated than just do X or Y.