The Two Words that best sum up Payton Pritchard's Impact on the Celtics this season

The fifth-year guard is averaging a career-high 14.1 points per game, and is the single-season record holder for 3-pointers made by a reserve (220 and counting).

Payton Pritchard, with Boston Celtics head coach Joe Mazzulla looking on, doing what he does best - making 3-pointers. (Photo by Rich Storry/Getty Images)

The Boston Celtics have been rolling along this season, bullying their way towards what looks like another deep playoff run.

One of the keys to Boston repeating as NBA champions, will be the play of Payton Pritchard.

Yes, on a team loaded with all-stars, players with more experience, players making more money, Pritchard’s play will without question be important in Boston’s quest to become back-to-back NBA champions.

His success involves several factors coming into play.

There’s his work ethic.

His talent.

And of course, being with the right franchise at the right time helps, too.

But when you disect Pritchard’s progress in the NBA, his never-shaken-or-stirred, irrational confidence sets him apart from most of his pro basketball brethren in what has been a historical season for the fifth-year guard.