IIRC, it wasn't even that it contracted one firm, it contracted many, and the individual contracts were managed separately. None of the systems were actually required to work with each other in letter, only in spirit.
The major advantage of bringing in the engineers (only one ex-googler, most were oracle and redhat, again IIRC) was that they were all already bigwigs and knew how to take ownership of large systems, and were given the authority to do so.
The major advantage of bringing in the engineers (only one ex-googler, most were oracle and redhat, again IIRC) was that they were all already bigwigs and knew how to take ownership of large systems, and were given the authority to do so.