Use 14 position players and 11 pitchers for the short series. Reevaluate if you make it past that. That’s been Maddon’s modus operandi the last two years.
Contreras, Avila, Rizzo, Zobrist, Baez, Happ, Russell, Bryant, Schwarber, Jay, Almora and Heyward are all locks. That leaves two of LaStella, Rivera and Martin. LaStella has had a great year as a pinch hitter. So he’s in. Rivera’s been a better player than Martin, but it’s hard to see how he contributes. Martin can be a pinch runner and late inning defensive replacement. So he’s in.
Lester, Arrieta, Hendricks, Quintana, Montgomery, Davis, Strop, Edwards, Duensing. That’s 9 locks. Is Rondon healthy? How much confidence does Joe have in Grimm or Wilson? Can Lackey be effective out of the pen? I would probably pick Wilson and Rondon - if healthy, Grimm otherwise. The fifth starter is pretty much always left on the sideline (see Dan Haren in 2015 and Jason Hammel in 2016) and this year Lackey is that 5th starter, and not even a particularly good one.