请英文好的朋友帮助修改一下英文作文的错误.
Useem(2010)arguesthattoreachthisgoal,itissignificanttohaveaverystrongteamspiritwithoutpersonalgaintoreachthisgoal.Todemonstratehowtofocusonmission,anexecutiveteamfromoneofAmerica'sbiggestfinancialinstitutionundertakeaLeadershipReactioncourse.Useemrelatesthelessonsabouthowtomakeagroupofbankmanagersuccessfullycompleteaprofessionalmilitarytraining.Thecourseincludeofaseriesofmilitaryobstacles,suchasacrossagapwhenthenecessarymaterialsmaynotstick.Meanwhiletheleaderofthegroupshavetocareaboutthetraps,suchasthe‘redpaint’whichcouldmakeyouloseyourmembers.