coaches
... that none of the coaches of the North Carolina Tar Heels men's basketball team has ever had a overall losing record?
... that none of the <b id="mwAss"><a class="mw-redirect" href="./List_of_North_Carolina_Tar_Heels_men's_head_basketball_coaches" id="mwAsw" rel="mw:WikiLink" title="List of North Carolina Tar Heels men's head basketball coaches">coaches</a></b> of the <a href="./North_Carolina_Tar_Heels" id="mwAs0" rel="mw:WikiLink" title="North Carolina Tar Heels">North Carolina Tar Heels</a> <a href="./North_Carolina_Tar_Heels_men's_basketball" id="mwAs4" rel="mw:WikiLink" title="North Carolina Tar Heels men's basketball">men's basketball team</a> has ever had a overall losing record?