With only Madison Bumgarner, Jake Peavy and an uncertain Matt Cain under contact for 2016, it's obvious where the majority of the Giants' attention should be early on in the offseason. Luckily for them, there are set to be more than a few options in the free-agent market.
Last winter, the Giants were in heavy pursuit of one of the top arms on the market in Jon Lester, narrowly missing out to the Chicago Cubs. They also strongly considered James Shields too, but wound up spending significantly less by re-signing Jake Peavy and I think they did so with an eye towards this offseason.