Kammala jumla mai zuwa: Ya rasa haɗawa ga ƙungiyar 2014 Six Nations duk da cewa mutane da yawa sun yi imanin Scotland ba ta da mai tsaron gida na gargajiya. Bayan nadin Vern Cotter a matsayin kocin Scotland, ba a haɗa Barclay a cikin kowane ɗayan 'yan wasan Scotland a shekarar farko ba, gami da Cotter na farko na Six Nations. Koyaya an zaba shi a cikin manyan 'yan wasan horo na gasar cin kofin duniya ta 2015 kuma ya sami kwallo ta farko tun daga 2013 a wasan motsa jiki na biyu da Italiya a watan Agusta na 2015. Ko da yake an cire shi daga tawagar 'yan wasan karshe na gasar cin kofin duniya, an sake shigar da Barclay a cikin tawagar Scotland don gasar cin kofin duniya.
2016 Gasar Kasashe shida kuma ya fara wasanni huɗu na farko a makafi, yana ƙoƙari a cikin nasara a kan Italiya.