I doubt anyone is confident about Varitek and Crisp, but whatever. Lugo, well, he gets on base. Basically solely a singles hitter, but he gets on. Lowell has a .836 OPS and is on pace for 26 home runs, so I don't really see your gripe.
EDIT: Didn't even see the second part, about Youk, Manny, etc. And you know what, I'll just let it be