Originally Posted by
Kieran
. . . By "they," I assume you mean the Works operatives?
Not as a group, no. Saber, Rider and Arcueid would qualify, given their natures (as would Ilya, probably), but the rest are just themselves.
Yeah, it means the odds are against them - Shirou wanted to be "able to save everyone," so Ilya set him up to do exactly that. He has the ability: the Panoptichron's temporal scanners can tell them how to fix a timeline, and what will happen if they don't, or if they do certain things, and he can reach everywhere he needs to - but ultimately, it's just the chance to save everyone. Actually pulling it off requires him to work for it . . . And a whole lot of luck.
Hence, assembling the Works - skilled people with an interest in helping (or who can be bribed to do so) - and scavenging every usable scrap they can. And when things are really bad, they can use the Grail, though that requires gathering a ridiculous amount of energy first.