(sorry about the large image, I didn't want to include the whole page, which is clearly a biased interpretation of this image)
I think it's reasonably apparent that the system in place now is not working. What was meant as a check to the power of the President, and a vital tool in democracy as been abused. It has become a tool of petty obstruction.
The real problem with it is that the cloture/filibuster rules were changed allowing the minority party to simply 'phone in' their cloture and send the rest of their caucus on vacation unless the majority party could force a supermajority to break it. It's farily apparent that the use of cloture/filibuster has been rising over time, for both majority parties, though visibly, obviously more with the Republicans and their stated position of opposition to everything Obama.