Actually, that's not true. The Disney Golf Resort opened in 1973, was expanded and re-named the Disney Inn in 1984. It was subsequently leased and then sold to the US Army, who re-named the resort Shades of Green.
I tend to agree with Deb & Bill on the alleged renaming of SSR, too. Saying that the Disney Institute was "renamed" Saratoga Springs is kinda like saying that Atlanta Fulton County Stadium was renamed Turner Field. Same site, but completely new structure.