No Rooting Interest, But Here's the Balance Beam

Aside from the previously mentioned Swisher/Damon/Stairs/Blanton:

Chad Gaudin, Pitcher, Y
Pedro Martinez, Pitcher, P
Miguel Cairo, Shortstop, P
Mike Harkey, Bullpen Coach, Y
Davey Lopes, 1B Coach, P
Mr. Damon was on the 2004 Red Sox.
Mr. Blanton was on the 2008 Phillies. [ETA: As was Mr. Stairs. Huh.]
Mr. Swisher was on the early oughts contending A's.

Too close to call.  Marginally favoring Phillies.