I sympathize with how Barfownz feels. But DaddyB is completely correct, Barfownz's point is overstated and untrue. The Disney company is not at all "falling apart with Walt not being around."
But that doesn't mean that Barfownz isn't raising a good question, he's merely arriving at an unfair answer. The question, of what condition the Walt Disney Company is in without Walt Disney himself, is a very good question. It's one I've mulled over here before.
What would be here for us to enjoy if Walt had truly lived to an old age? Would there have been more rides on the scale of Pirates? Would Walt's version of Epcot have been what he dreamed it would be? How would the movies of the 70's and 80's have been if Walt had lived just a couple decades more?
What Barfownz said needed to be countered. But he touched on something worth discussing. We know at the Disney company, the years following '66 must have been hard. Walt oversaw Pirates, died before it opened, and the development of HM was not yet finished. And it did affect how the ride came out.
Consider this, from the wonderful Doombuggies site. "In Disneyland: Inside Story, author Randy Bright quotes Davis as he recalls the confusion: 'Walt had not been gone that long. I think there were a lot of great ideas, but when you have too many people of equal clout, nobody's about to say, 'Hey, wait a minute! Let's do it this way,' which Walt would have done in a moment.'"
from
http://www.doombuggies.com/history4.htm
Doombuggies then includes an enthralling quote from Bright's book about how the Imagineers struggled without Walt there to guide them. It not only is an interesting look inside the studio, but it gives fascinating details about how the ride came to be.
No, the Disney company is definately not falling apart today. But in a sense, Barfownz is correct that the Haunted Mansion ride was changed by Walt's passing. But it happened 40 years ago.