Ben Golliver and Michael Pina look back on the first quarter of the NBA season to investigate which teams are having the biggest regrets after six weeks of basketball. Would the Boston Celtics have found a way to keep Gordon Hayward? Would any team trade for Russell Westbrook? How should the Washington Wizards wiggle out of their current predicament with Bradley Beal? Did the Brooklyn Nets make the right hire with Steve Nash? Should the Detroit Pistons have scrapped their entire strategy? Did Denver need to back up the Brinks truck for Jerami Grant? How many teams screwed up by passing on Tyrese Haliburton? Should the Atlanta Hawks have just paid John Collins? Was there anything that Luka Doncic's Dallas Mavericks could have done differently to prevent their slow start? What about the wayward Timberwolves?