Disney (NYSE: DIS) continued its string of ESPN layoffs last week, firing 100 employees, including many on-air personalities familiar to sports fans. Those getting the pink slip include commentators such as former NFLers Trent Dilfer and Danny Kanell, former MLB stars Doug Glanville, Dallas Braden (who once threw a perfect game!), Raul Ibanez, and Jim Bowden, and former NBA star Len Elmore, along with a bunch of lesser-known Sportscenter anchors. The sad episode is another chapter in ESPN's struggles in the face of cord-cutting, internet sports substitutes, and high-cost sports rights.ESPN President John Skipper sent a letter to employees, which also illuminated the company's thinking on how it is going to adapt to a world that is increasingly unbundled, online, and cost-conscious.