Frank Isola of the New York Daily News reported today that Porter was close to being fired recently until the win against the Hawks probably saved his job.
Here's part of the article followed by the link.
D'Antoni probably got out of Phoenix just in time; the Suns are an aging team with a bunch of grumpy veterans, including Steve Nash. It's just a matter of time before Porter, a good guy who deserves better, takes the fall. I've even heard that he came close to being removed until Phoenix won in Atlanta last week.
http://www.nydailynews.com/blogs/knicks/2009/02/suns-setting-on-dantonis-forme.html