With Peter Mueller out (likely due to a concussion) don't be shocked if Gabriel Landeskog moves up to Colorado's second line. The 18-year-old rookie has excelled on the team's third unit and could be ready to take the next step becoming a top six forward. Of course, the Avs could make a trade to replace Mueller, but only if it won't involve moving top prospects Stefan Elliot or Duncan Siemens. Stay tuned.