I have always put in a series of best of breed application / system / network management products regardless of what the Framework vendors have offered.

Anyone who tried to get a full framework implementation in place across a large enterprise knows it's an exercise in futility. At the end of the day, all management SW is plumbing, and trying to justify the spend for a full framework installation is extremely difficult.

The vendors have always treated their products as a straightforward means of account control. They know that the cost & pain of replacing an installed solution is usually so steep that few people do it.

I recommend that customers roll their own "frameworks" and work to control the presentation layer w/ Business Service Management SW on the top. That way you can go back to your existing vendors and tell them truthfully that their "plumbing" is now invisible to your users and you can remove / replace it. It's the only way I have ever found to get leverage in this space.