Dayn Perry's entertaining one-sentence capsules of why every team will win the World Series says this for the Astros:
They'll need some serious surprises in the rotation, a better team defense than can be reasonably expected, and perhaps a transfer to the Big 12.
Could be worse. Perry could have said this, as he did about the Nationals:
Um, wow ... Besides having everyone else in the division disappear into the ether, the Nats need miracles in the rotation, health for Nick Johnson and Ryan Zimmerman, and somehow the ability to pitch around a terrible outfield defense.