From what I have heard comcast keeps a couple of project coordinators to oversee the contract coordinators for construction projects. So yes they have coordinators but not as many as TWC uses. One of the posts states just this same scenario where he worked for Comcast and was let go only to be picked up as a contractor at the same location. In-house construction crews will be phased out except for the markets that actually have a union in place which some TWC systems do have.
This is CABL.com posting #363538. Tiny Link: cabl.co/mbGJG