A current of concern was flowing underneath the Streaming Media East conference this week. After soaking up three days of presentations, panels, and fireside chats, it became abundantly apparent that the streaming media landscape – and more specifically the CDN space – is more puzzled than ever. This isn’t a new observation – it’s exactly why groups like the CDN Alliance and Streaming Video Alliance were formed – to bring frameworks and guidance to a deeply fragmented landscape. Unfortunately, something isn’t working. Enter Open Caching. Again, not new, but a key theme at Streaming Media East. The initiative from the technical association has huge tier 1 endorsements from Verizon, BT, Telecom Argentina, and Disney, so why is the Streaming Video…