Rubuta ci gaba don wannan sakin layi - Lamont ya tsaya ga jagorancin Labour na Scottish bayan da ya yi murabus na Iain Gray a sakamakon rashin nasarar jam'iyyar a zaben majalisar dokokin Scotland na 2011; rashin nasararsa na biyu a jere. Bayan nazarin yadda za a tsara Jam'iyyar Labour a Scotland, ta zama ta farko shugaban shugabanci. Ta bayyana cewa Labour ta rasa zaben 2011 saboda ta rasa shugabanci, kuma ta fara nazarin manufofin Labour na Scotland kan batutuwa kamar rarrabawa da kuma sadaukar da jam'iyyar ga ayyukan jama'a na kyauta. Bayan sanarwar Gwamnatin SNP na zaben raba gardama kan 'yancin Scotland
, ta kasance muhimmiyar mahimmanci a cikin Better Together campaign; wani motsi na ƙungiyoyi da ke neman ci gaba da Scotland a cikin Ƙasar Ingila. Ta yi murabus a matsayin shugabar kungiyar kwadago ta Scotland a watan Oktoba na shekarar 2014, inda ta sanar da hakan a wata hira da aka yi da "Daily Record" inda ta yi ikirarin cewa manyan jami'ai a cikin Jam'iyyar Labour ta Burtaniya sun yi watsi da kokarin da ta yi na sake fasalin jam'iyyar ta Scotland, kuma ta bi da ita "kamar ofishin reshe na London". Bayan zaben shugabanci don maye gurbin ta, tsohon Sakataren Harkokin Wajen Scotland Jim Murphy ya gaje ta a watan Disamba na 2014.