four Portland Trail Blazers head coaches
... that four Portland Trail Blazers head coaches have spent their entire National Basketball Association coaching careers with the Trail Blazers?
... that <b id="mwB3k"><a href="./List_of_Portland_Trail_Blazers_head_coaches" id="mwB3o" rel="mw:WikiLink" title="List of Portland Trail Blazers head coaches">four Portland Trail Blazers head coaches</a></b> have spent their entire <a href="./National_Basketball_Association" id="mwB3s" rel="mw:WikiLink" title="National Basketball Association">National Basketball Association</a> coaching careers with the Trail Blazers?