You forgot Brian Shaw on that late 80s Celtics team (he played there from 88 to 92, minus a year in Italy).
He was also an unheralded draft pick out of UCSB.
I think he had like 14ppg and 7 or 8apg as the starting PG in 90-91.
Would the Cs have taken Reggie had Len still been around, that is up for debate, but seeing how he went to college in Boston and their pick was late in the first round it is very possible they would have wether it be a pressing need or not.
I miss the days when the Celtics made good decisions on draft day.