#2 Why was there a 5-man commentary booth?

And here many of us are cribbing about three man booths and hoping that the WWE would see the sense to revert to two again.
In all fairness though, the five-man booth didn't turn out as convoluted and all over the place as I thought it would. It was pretty well managed and the commentators rarely spoke over one another.
That being said, it's possible that the WWE saw it as a way to make Survivor Series seem like a bigger deal by even portraying SmackDown Live and Raw-specific commentators as separate entities that had their own allegiances and motives.
Although, I must say, Booker T seemed lost in the shuffle and I'm pretty sure he ended up supporting both brands at some point in time.
All in all, well played WWE. Personally, I'm not a huge fan... but at least there wasn't a monumental cock-up when there could easily have been.