The Boston Celtics are playing their best basketball since the days of Paul Pierce, Kevin Garnett, and (yes, even) Ray Allen. They currently sit second in the Eastern conference, tthree games behind the Cleveland Cavaliers, with Kevin Love out with an injury and LeBron James logging more minutes than he should at age 32, and Brad Stevens is going to coach the Eastern Conference All-Stars for the first time in his career. Perhaps most impressive about what they have done is that they are winning games with regularity in spite of their significant lack of health, with the longest tenured current Celtic Avery Bradley and 2016 free agent acquisition Al Horford both missing extended periods due to injury.

The success of the Celtics two and a half years removed from being in the draft lottery themselves (as opposed to living vicariously though the Brooklyn Nets’ miserable season) to being a top-five team in the NBA, despite Danny Ainge’s inability to find suitors in this decade’s version of the Allen and Garnett trades that the fan base so desperately wanted, is a testament to the coaching staff and the smaller moves Ainge has been able to make, but the biggest story for the Celtics has been the NBA’s smallest blossoming superstar.

Isaiah Thomas stands 5’9″, two inches shorter than I am, and my always unrealistic dream of playing on a school basketball team, let alone in the NBA ended around sixth grade when I realized I’d never be tall enough to make up for my inherent lack of skill. Despite a good college career (two time 1st Team All-Pac-10, two time Pac-10 Tournament MVP at Washington), Thomas was overlooked by NBA teams for his height, and he was taken with the 60th and final pick of the 2011 NBA Draft by the Sacramento Kings.

What is amazing about players taken in the 2nd round of the NBA Draft is that the ones that make it as stars, make it with a vengeance. Draymond Green fell to the second round, is now the NBA’s best defender, the most polarizing player on the NBA’s best team, and has developed this revisionist history around his draft status where several teams claim they were about to take him even though they all had a chance at him. Manu Ginobili being selected by the San Antonio Spurs with the 57th overall pick in 1999 and forging a Hall of Fame career out of obscurity in Argentina is an even greater component to the mystique and the greatness of Gregg Popovich and the Spurs than lucking into Tim Duncan at #1 in 1997.

In Isaiah’s case, though, the Kings do not get the credit for finding a diamond in the rough of a superstar because they let him go before his full potential was realized–same goes for the Phoenix Suns–but the chip on his shoulder is just as big as Draymond’s. Thanks to another great trade by Danny Ainge (a three team trade with Phoenix and Detroit where the Celtics gave away Marcus Thornton, Tayshaun Prince, and a late 2016 1st round pick, and came away with Gigi Datome, Jonas Jerebko, and IT), Thomas arrived in Boston at the 2015 trade deadline.

The Boston teams are in the midst of an under-six-feet renaissance between Julian Edelman (5’10”), Dion Lewis (5’8″), Malcolm Butler (5’11”), Danny Amendola (5’11”), Dustin Pedroia (5’9″), Mookie Betts (5’9″), Andrew Benintendi (5’10”), Jackie Bradley Jr. (5’10”), Brad Marchand (5’9″), and Torey Krug (5’9″), but Isaiah Thomas is the ultimate example because of the emphasis on height in who plays basketball at the professional level. While the Red Sox and Patriots gain acclaim for taking a chance on shorter outfield prospects and surrounding Tom Brady with a bunch of quick and shifty little guys, the Celtics have turned into a borderline contender built around a little guy in a big guy’s sport. This is almost unprecedented.

My two favorite basketball players who never played for the Celtics are Tim Duncan and Allen Iverson. I have written plenty about Duncan over the years, given that he was an active player this time last year, and he and Pop have been the Brady and Belichick of basketball. I wanted to write my ode to AI in September when he was enshrined in the Hall of Fame in September, but it was my last college semester, I was working full time, and my buddy Murf’s bachelor party was that same weekend. Life got in the way, but I am here now.

I attended my first Celtics game in 2001, weeks after Rick Pitino skipped town. The Philadelphia 76ers were in town in a year when they eventually reached the Finals and Iverson was the MVP. To this day, I believe he is the best athlete I have ever seen in person (Honorable mentions Sidney Crosby and Evgeni Malkin. The interesting thing is that Malkin actually stands out more than Crosby in person because of his size.). By my memory, he systematically picked apart a Celtics team that had Pierce and Antoine Walker and was finally showing signs of a competitive pulse at the start of the Jim O’Brien Era almost entirely by himself. It was amazing.

Iverson was officially listed at 6’0″, but even as a kid, I never really believed that number. AI was fearless and played like he was six inches taller than his actual height, making him one of the most intimidating people in the history of the NBA. He played hard and lived hard, and his career ended much more abruptly than many of his contemporaries as a result, but in his heyday, there were few players more compelling for someone flipping through the channels and stopping on a neutral site basketball game.

AI never won a title, and was labeled as a selfish player. Some of that was fair, but also a lot of that was the lack of quality talent that surrounded him in his prime. Unlike other elite point guards of his era like John Stockton, Gary Payton, and Steve Nash, AI never had a Karl Malone, or a Shawn Kemp, or a Dirk Nowitzki, or even an Amar’e Stoudemire to give the ball to. AI had Keith Van Horn and a past-his-prime Dikembe Mutombo. Iverson tried to do everything on offense by himself because that really was the best option in most years. This is the thing that has me worried about IT in Boston, but also not really. Sure, Al Horford is not the elite offensive threat that Karl Malone is. Sure, Kelly Olynyk is the victim of early Dirk comparisons. Sure, Jaylen Brown is an unproven rookie with some trouble finishing at the rim. But the Celtics are still building. Isaiah already does not have to do it all himself, even if he is consistently lighting it up in the fourth quarter, but they are still getting better.

What I really like about Isaiah Thomas the more I have learned about him is his self-awareness. In listening to recent podcasts where his sat down with Kevin O’Connor of The Ringer and Adrian Wojnarowski of The Vertical, he has it all in perspective. He was the last pick in the draft. He was 27 and on his third team by the time he became an All-Star, and he’s just now getting recognized as a legitimate superstar at 28. It’s like an actor or musician who did not achieve success or fame until after he or she learned how to be an adult. In the NBA, we are at the point where we are surprised when someone drafted as a teenager like Kevin Garnett or LeBron James turns into a well-adjusted human being. Isaiah spent his basketball career being doubted, being overlooked, and has proven people wrong at every turn, so now that he’s arrived, he’s not about to let it get to his head.

This week, Thomas broke a 45 year old Celtics franchise record set by the great John Havlicek of 40 consecutive games scoring 20 points or more, with game 41 being Boston’s last-minute loss to the Chicago Bulls the other night. IT is making his way into the history books in the NBA’s most storied franchise, but this story is still in its early stages.