There's power in unbundling and there have certainly been some great success stories in niche / topical publications online... but at the same time there's a reason why we-do-a-little-bit-of-everything news sites still attract a huge audience. People often aren't looking for anything in particular to read, just something, and that's a really good platform from which to do investigative work, if you want people to actually see it. There's a reason why ProPublica, probably the best investigative unit out there, routinely partners with newspapers in lieu of just putting things on their own websites: many more people will see it, and that matters.