Schmidt is the best pitcher in baseball. Tomko pitched like an ace during the second half, and should perform well for a full season next year now that he’s had a full year with the Giants. Williams was one of the top pitching prospects in baseball, and was on pace to win 15 games last year before going down with an injury. Rueter is still effective, and the improved defense greatly helps him out. Lowry went undefeated last season, and made adjustments at the end of the year. He was dominating at times himself. And Foppert is fully healthy and back, and is dominating winter ball.
Let's not go overboard. I agree that offense is the issue with the Giants, and while the pitching is solid, it's not like they have the Cubs rotation. Schmidt isn't the best pitcher in the NL, much less all of baseball. I'll take Santana any day of the week. He is a Top 5 guy in the NL, though.
Tomko has a career ERA of 4.53 and only in his rookie year did he have an ERA under 4. As for the second half of 2004, all I can say is even a blind squirrel . . . .
Williams and Foppert while talented, are coming off injuries. And a 4+ ERA in winter ball is not "dominating."
Lowry is good - but, again, let's see him do it for more than half a season. That said, I'm highest on his ability to contribute.
As for Rueter, well, if you can't say anything nice . . . . More hits than innings, more BB than K. I just don't see him with an ERA under 4.5 with those numbers.
So while I agree on offense being a need, I don't think the pitching is so solid as to be ignored.