#2 Might need to change: Bringing up NXT stars too early

At this point, it's become murky as to just how much NXT remains the developmental body of WWE.
When it comes to pleasing their fans, and critical acclaim, NXT is far and away ahead of any of WWE's other brands, including flagship show RAW. On the other hand, WWE is still treating NXT like the minor leagues, and poaching their talent for the main roster at a steady rate.
Did you know a top WWE Superstar just wrestled outside the company? More details HERE
Some NXT wrestlers have done quite well on the main roster, such as Andrade, but then you have Heavy Machinery. The comedic duo was booed during the Stomping Grounds match against Rowan and Daniel Bryan, which is not a good look.
WWE might want to consider keeping its stars in NXT for a little longer to season them before making the jump to the main roster.