Frankly, I believe that Twitter is already great. They have an enormous user base and the participation is off the charts.
The problem is, I cannot for the life of me see how this platform is able to monetize itself into a viable, hugely profitable business. Granted, Twitter now is a profitable business, but my understanding that a significant part of their revenue comes from search agreements from Google.
So, how does Twitter expect to drive significant PROFIT growth on a foundation defined by 160 character sentences?