Red Sox ALDS roster finalized

The Red Sox's ALDS roster is set and ready to go for Anahiem:

Starters
Jon Lester (L)
Daisuke Matsuzaka
Josh Beckett

Relievers
Tim Wakefield
Paul Byrd
Javier Lopez (L)
Manny Delcarmen
Hideki Okajima (L)
Justin Masterson
Jonathan Papelbon

POSITIONAL PLAYERS

Projected starting lineup
Jacoby Ellsbury, CF
Dustin Pedroia, 2B
David Ortiz, DH
Kevin Youkilis, 1B
Jason Bay, LF
Mike Lowell, 3B
J.D. Drew, RF
Jason Varitek, C
Jed Lowrie, SS

Bench
Mark Kotsay, IF-OF (L)
Coco Crisp, OF (S)
Sean Casey, 1B (L)
Alex Cora, IF (L)
Kevin Cash, C (R)
David Ross, C (R)

Thoughts? It seems like Ross is on the roster because they are worried about needing to pinch-hit for Varitek, leaving just Cash to catch.