Celtics’ ‘Luxury’ Additions Making Difference In Eyes Of Contender

BOSTON — It’s no secret that Jayson Tatum and Jaylen Brown, the Celtics’ homegrown stars, are the faces of the organization. It’s the guys around those two stars, and more specifically the outside additions who start alongside them, that seem to be making all the difference for Boston, however. The C’s have been in contention throughout Tatum and Brown’s seven-season run together, making the Eastern Conference finals in all but two of those campaigns. They’ve yet to reach the mountain top, though, and in a season where their chances look as good as ever, the focus has been on their supporting cast. “I think both the additions of Porzingis and Jrue Holiday were two great additions,” Denver Nuggets head coach…