I was soliciting input from Corbin Links on something and it brought me to his latest blog post which is titled When Good IAM Software Goes Bad. It describes the common pitfalls of Identity Management software deployment. He really hits the nail on the head in terms of the types of frustrating issues you encounter when deploying IdM solutions. AND - he provides some tips on how to avoid them and gives some great advice.
Incidentally, it's not the first really useful post by Corbin. If you're a company that needs to roll out Identity Management solutions, he should be on your reading list. e.g.) For a pragmatic approach to dealing with Role Management, check out his post on Role Mayonnaise. ...not to be confused with Mayonnaise on a Roll, which I've been told was a tasty snack during The Depression. (sorry for that)