Spoken like a true pesimi… I mean architect ;-)
I got inspired from reading Steve Jones’ Blog-post titled: “The biggest lie in IT – Enterprise”, which in short says the there is no such thing as tool that will work across the entire enterprise.
I believe that this is spoken like a true pesimi… I mean architect 
No seriously, he has a point. No product is going to solve your problems. However it might help solve your problems - if used right. The only thing that can make enterprise solutions work is YOU. And what you will probably find is that it is not the product that will be your biggest challenge – your biggest challenge is the organization.
Having a tool working across an entire enterprise requires more than the tool, it also requires that it is used in a controlled fashion. An endeavor that requires full organizational support (and power)!