Wyc Grousbeck sums up '18-'19 Celtics with telling playoff prediction originally appeared on nbcsportsboston.com How best to describe the 2018-19 Boston Celtics, a group that entered the season with grand expectations, has fallen massively short of those expectations yet still has its most important basketball ahead? Leave it to the boss to articulate. Speaking Saturday at the 2019 Sloan Sports Analytics Conference in Boston, Celtics co-owner Wyc Grousbeck aptly summed up his inconsistent squad during a panel discussion with ESPN reporter Jackie MacMullan and Los Angeles Lakers president Jeanie Buss.