I find that Titan's success rate went up drastically when I, as a tank called out abilities as they were coming up in order for my groups to be more prepared for them. Granted you can't really do this much for PUGs (not really true, just need to make macros with different <se.#> alerts)... but for my FC runs as we clear it for more and more people's relics, it makes it a whole lot easier. That's what I do as a tank, I know the fight, and call out to help ease the anxiety some newer players may have coming into the encounter and help them learn the fight. it's pretty boring but it's a needed check to help improve communication and awareness for the DPS/Healer classes.