Yes, the Cardinals scored 13 runs in Game 5 of the NLDS, but that type of offensive explosion has been rare for St. Louis. The club only scored 13 runs in its previous four games, and outside of Paul Goldschmidt, Marcell Ozuna, and Tommy Edman, producing runs has been a struggle. The Cardinals ranked 21st in the regular season in OPS and are last in homers among postseason clubs.

No team relies more heavily on its starters than the Nationals. They boast three bona fide aces, but once one leaves the game, it feels as though no lead is safe. Daniel Hudson has impressed, but Sean Doolittle's had a rocky year. Washington can't rely on its starters to pitch in relief in a longer series like it did in the NLDS. 

The Yankees' rotation has been adequate, considering playoff series require fewer innings from starters. Aaron Boone took this to heart in the ALDS, as New York leaned heavily on the bullpen during its sweep of the Twins. Masahiro Tanaka was the only starter to finish five innings. Expect plenty of relief arms against the Astros.

Houston's starters dominated most of the ALDS, hiding what was a pretty ineffective 'pen. Both high-leverage relievers in Roberto Osuna and Ryan Pressly struggled, and outside of Will Harris, there doesn't appear to be a lock-down arm. In 13 innings this postseason, the bullpen owns a 4.15 ERA and 1.86 WHIP.