Rubuta ci gaba don wannan sakin layi - Duncan ya halarci taron LIHG a lokacin gasar zakarun duniya ta 1947 Ice Hockey
, inda CAHA ta nemi amincewa da sabon ma'anarsa na mai son a matsayin duk wanda ba ya tsunduma cikin wasan ƙwararru da kuma haɗin gwiwar da aka gabatar na Ƙungiyar Ice Hockey ta Duniya tare da LIHG. A babban taron 1947 na CAHA, Duncan ya yi adawa da karuwar kasuwancin hockey na kankara na matasa da kuma tallafawa kai tsaye na kungiyoyi ta NHL. Bayan da CAHA ta aiwatar da kwangila ga matasa da manyan 'yan wasa, ya ji cewa hakan ya zama sanannun ƙwararrun ƙwararrun ƙwararrun CAHA.