This week's news that Thomas Staggs is leaving his post as COO of Disney might seem like it's a simple personnel issue. I discuss why I think it is much more significant and gives a peek into how much concern there is inside the boardroom at Disney about that company's future and how it will transition its old cable business to a digital world.

Yahoo's had a lot of successes over its 20 years, but it's also in a tough spot at the moment. What were its big mistakes over the last few years? What could it have done differently to change its situation? What's going to happen this year? Eric Jackson shares his thoughts on these most popular questions about Yahoo these days.

Eric spoke with TechCrunch's Jon Russell about if Messaging Apps are about to take over the world of computing. Apps like WhatsApp, WeChat, FB Messenger, iMessage, Line, Kik, Snapchat, and Kakao are extremely popular. Some think they will morph into places were we do all our communications and e-commerce. We discuss who's best positioned to benefit.

Eric spoke again with ReDEF's Jason Hirschhorn about what Viacom and MTV used to be when he worked there in the early 2000s vs. what it has become today under Philippe Dauman. We discuss the Tom Freston days, what Shari Redstone has and might do, and how to turnaround the once great company.

Eric caught up with Re/Code's Peter Kafka to discuss his recent media and tech interviews at Code/Media and where he thinks Big Media is at with the inexorable pressure on the bundle. We also discuss Netflix, Viacom, Time Warner, and ESPN.

Sydney Finkelstein is a Dartmouth Business School professor, author and consultant. He was also on my doctoral committee a while back. His new book out February 9th, 2016 and sure to be another business best-seller is called "Superbosses: How Exceptional Leaders Master the Flow of Talent." In this discussion, we cover the 3 types of Superbosses he found in his research and what specifically they did to find and develop great teams around them.

Eric spoke with Laundry Service's Jason Stein about what he thinks are the biggest problems facing Twitter and how Jack Dorsey should fix them. We also discuss why companies like ESPN and Viacom have such a hard time changing their ways.

Eric caught up with BTIG's Rich Greenfield about his recent downgrade of Disney with a new $90 price target and what some of his recent research shows about consumers' interest in subscribing to ESPN as a stand-alone OTT offering. We also discuss what 2016 will hold for Time Warner and if they'll sell or break up the company.

Eric talked to his Ph.D. advisor Don Hambrick who is now at Penn State's Business School. We discussed what makes a great board of directors, the qualities of a successful CEO, and how to build a high-functioning Top Management Team.

Eric spoke with Bloomberg's Entertainment Reporter Lucas Shaw about how Amazon has grown to be the #2 digital player after Netflix, what media aspirations they have, how they've gone about differentiating themselves in the market, and what kinds of moves they are likely to make in the future.