Notebook: Siemens placed on waivers. Is this it for Avs career?

Three NHL players were placed on waivers Friday morning. Duncan Siemens was one of the three. While it does not necessarily mean the end of his fraught career with the Avalanche organization, it is another obvious setback for a player who went 11th overall in the 2011 NHL draft. Unless he is claimed by another team within a 24-hour period…