I've had this discussion with a couple of my friends and I'm convinced that they really won't change anything creatively because they don't "need" to.
You notice they only make the bigger decisions and more efficient decisions when it comes to the Network, but in wrestling, especially now, when you become so rich and have such a large budget that gives you the possibility to do whatever you want but you do the exact opposite. I could sit and type out everything that's wrong with RAW and SnackDown but not even just in wrestling, but in most forms of business, when the bosses gain enough money not to worry and have a consistent (whether it be good or bad) rating or quality they won't shift from that because they come up with so many excuses to explain drops other than the truth. When you get into the comfort zone and most of the employees are just there to be in a comfort zone and just solely in it for money they don't have passion for what's actually entertaining otherwise every main event on RAW wouldn't be Reigns vs. Strowman.
WCW had the same problem, they had Nitro, Thunder, about a thousand guys on the roster, a hundred titles which WWE mock all the time in the documentaries they make but are doing almost the exact same thing now and losing money and cutting costs. Now, I'm not an expert and I'm liable to be corrected but a successful company as WWE claims itself to be doesn't cut so much costs and content of a show the same time every year for the same reason and don't eventually work out what's wrong, but it's not like they can't know they're either lying or don't want to admit three hours of promos with matches that are all the same, the commentary and promos are robotic, there's even less wrestling with more time the show has which blow my mind and they're completely disregarding 70% of the roster.
NXT is so over because it feels like more of a freer product, not much, but more freer than the brands, and less is ALWAYS more, less time on a show, less wrestlers that are in turn being used more which RAW/SD is doing the opposite and they're making the most of almost all the talents they have.
All of this, and the constant fact, in my mind, since Punk left there hasn't been any legit, 'real', passionate programs or workers you can suspend your disbelief and people saying "Well it's not real1!!!11" but don't know how to form a long term angle rather than a title match every week to some wrestlers who frankly don't even deserve to be signed and don't hold a memorable reign.
I understand their fascination with 7fters but at a certain point you need to realise even the UFC doesn't have 7fters and is believable because it is in fact real.