This would be a tough consolation prize.
Kershaw vs. Scherzer
Hill vs. Roark
Then what???
Strange things can happen. The Nats have Scherzer and Roark, at least.
(1) Spahn and Sain / and pray for rain
(2) Yankees won the World Series in 1978 with only one starting pitcher, Ron Guidry, and one relief pitcher, Goose Gossage (won Game 4). Catfish Hunter's arm was falling off, although Hunter was such an ace that he helped even though his arm was in shreds (two starts, and won the clincher).
(3) Washington ball club won the 1924 World Series even though Walter Johnson lost all of his starts. Came in to pitch four innings of relief and to win Game 7.