That is rubbish. Did we trade Smyl, Linden, Naslund the Sedins etc in their prime? Because they might be expensive?
Also please see this link NHL trade tracker, which top level players did Colorado trade away?
http://www.nhltradetracker.com/user/trade_list_by_team/Colorado_Avalanche/1
Landeskog is the same age as Miller, but they should probably just trade him as he isn’t an important part.