The loss of the DH has not had the negative impact on the Red Sox' production as many predicted it would. Why? The way Ortiz has been hitting the last two games, Ortiz plus the pitcher's spot have probably hit at least as well as Ortiz and Napoli normally would. That is to say, Ortiz has had the offensive production that it normally takes two or more players to produce. 99% of the season, Pedroia is this team's leader, but right now the hot-hitting, keep-it-light, knows-how-to-win-World-Series-beause-he's-done-it Ortiz is the medicine the Red Sox need, and he's stepping up big time in that role, egging on his teammates to get it done during a dominant Game 4 offensive performance.
Things are now lining up well for the Red Sox. Their top starter, Lester is going in the last game in St. Louis. Lester has been on fire and determined these last two months, besting some of the top pitchers in the game, including Scherzer and Wainwright. If Wainwright can't rediscover his A game Monday night, the Red Sox can expect to go home with a 3-2 series lead.
At that point, Lester becomes a relief pitcher, capable of helping the Red Sox take a game 7. A nice addition to a bullpen, and a weapon against a Cardinals team that struggles against lefties.
Then a competitive and dependable Lackey in Game 6 against the Wacha. But home field advantage to the Red Sox. Lackey had Wacha all but beaten in Game 2 before defensive miscues unraveled what he'd accomplished.
I think at this point the Red Sox have to assume that something is wrong with Breslow. Be it physical or mental, it's time to stop trusting him as much as they usually have been able to throughout the year. But they'll be able to draw upon their finished starters now through the final games: Doubront, Dempster, and through the final 1 or 2 games, Lester and Buchholz.