"It’s been my experience that the main reason most designs go unsolved is not the lack of talented designers or their interest in solving the problem. Instead, the problem is with the organisation themselves  - their inability to allow themselves to implement the right design, or even any good design."

Yup.

Why is it so hard to get an organization to go along with something?

I guess it's just hard to get a lot of people to agree to ANYTHING.

FUD, mostly.

Lack of clear goals

Lack of an agreed way to achieve goals

Lack of a willingness to engage in healthy debate in service to those goals

Fear of being responsible for a decision that may fail

The answer is usually a combintion of clarity and courage. 

http://www.businessandleadership.com/video/v/482-prof-john-kotter-on-getting/