This upcoming season, the Boston Celtics will play a completely different roster than year's past. There is no Kyrie Irving or Al Horford this season. This year is one of growth and youth.
There are eight rookies that are currently signed to contracts with the Celtics at this moment. Who is the most important one, though? I say it is Grant Williams.
Those at NBC Sports Boston agree, as all three of Abby Chin, Sherrod C. Blakely and Max Lederman decided on Williams when asked by Chris Forsberg in his piece.