Cisco CRS-1 and Nortel DWDM Score Comcast Wins

I wonder why Cisco didn't win the DWDM part of this deal, which has to be the bigger piece. I can't see Comcast needing more the 4 or so CRS-1 routers. I wonder if Comcast will use Cisco's new DWDM optics in the CRS-1 router, and just use Nortel for the ROADMs and OA's.