Shares of Netflix (NFLX 1.74%) have nearly doubled this year while its chief competitor in video streaming, Amazon.com (AMZN -1.65%), has lagged the market. Now The Wrap reports that Anthony Bay is out as the head of Amazon Instant Video just weeks after Jim Buckle left as head of the unit's European operations, LoveFILM.

Interestingly, the shake-up comes in the wake of Amazon paying up to get exclusive access to episodes of "Downton Abbey" and the FX action hit "Justified." Do the changes reflect trouble at Amazon Instant Video? Are investors right to believe that Netflix is thriving despite intense competition?

The Motley Fool's Alison Southwick asks Tim Beyers of Motley Fool Rule Breakers and Motley Fool Supernova for his perspective in the video below. Please watch, and then leave a comment to let us know what you think.