Paul Sullivan reports in the Tribune that Sean Marshall has been officially anointed the Cubs' 5th starter.
Says Manager Lou:
"Marshall is going to be the fifth starter, and [Aaron] Heilman is going to pitch in that seventh-eighth inning role."
Haven't seen a lineup yet for this afternoon's Cubs-Mariners game, but Lou Piniella's stated plan with Corey Koskie is to "probably play him every couple days and see how he does..."
Koskie started Tuesday's game against the Dodgers and ripped a double off the centerfield wall in his first at-bat. He also walked and grounded out.
In looking for some information on Koskie, I came across an mlb.com article from April of last year, when the longtime Twin, still suffering from the after-effects of a concussion he suffered as a Brewer, dropped by the Metrodome.