#3 Scripted promos
A big problem in terms of character development has been scripted promos. In the past, promos were not scripted and this allowed Superstars to have more creative freedom. Stone Cold Steve Austin and The Rock both rose to prominence through unscripted and raw promos.
Austin 3:16 was born through a moment of improvisation from the Texas Rattlesnake after winning the 1996 King of the Ring, while The Rock's popularity was generated mainly through his exhilarating promo skills.
Some Superstars are probably more suited to scripted promos and others can pull them off well. Having material written for wrestlers minimizes mistakes, but the safe nature of some of these hold some stars back from realizing their true potential.
If WWE gave the opportunity to their wrestlers to be themselves on camera and develop them more organically, WWE's shows might be a bit more chaotic but it will create a more competitive environment and give them the opportunity to better themselves.