Your comment is a pretty good example of the kind of organizational dysfunction that results from unclear reporting and leadership vacuums. From the inside, lots of people are doing their job and doing their job well. From the outside, all this activity and all these highly-paid and highly-talented employees don't result in anything novel or useful. The company keeps chugging along, making boatloads of cash from its existing customers because old habits die hard, but gradually loses its capacity to adapt to market shifts. Then when a market shift happens, it goes out of business.

Twitter's problem is that a market shift is already underway, and their financials are precarious. Companies like Oracle or IBM can limp along for decades as long as their customers stay in business. Google is in the middle - their business is probably more precarious now than it's been in 20 years. Twitter is at imminent risk of death in the next 1-3 years if they don't turn the ship around.