But was it that risky? And were fans really up in arms about it when it happened? And where do the Raptors and Leonard go from here?

The arrival and triumph and future of Kawhi Leonard in Toronto is a basketball drama in three stages:

Why trade made sense then

Ujiri wasn’t happy in the immediate aftermath of Game 3 of the 2018 Eastern Conference semifinals against the Cavaliers. He was quite irate, in fact, and this is likely the precise point where the quest for a superstar took root.

LeBron beat the Raptors at the buzzer with a running, fading, floater after running unchecked for nearly the length of the floor to put the Cavs up 3-0 in the series. Ujiri had harsh words for coach Dwane Casey, according to those who stood outside the closed doors, and the topic of conversation likely had to do with strategy on the play. Ultimately, it cost Casey his job when the Raptors were a no-show in Game 4 and the Cleveland sweep complete. The most successful coach in team history was gone.

In the 2018 playoffs, the Raptors were ousted by their usual nemesis, the Cavaliers.

Ujiri surely noticed the Raptors lacked anyone good and dependable enough to take over a game, similar to what LeBron and maybe a dozen other players do. It’s nearly impossible to win a title without at least one such player. The trick was finding one and unless a team is bad enough to draft one -- then comes the matter of developing said player -- or can convince one to sign through free agency, the odds dwindle.

There is one other method: Find a distressed one.

This happened 18 years ago when a domestic violence incident greased Jason Kidd’s path out of Phoenix and he subsequently led the then-New Jersey Nets to a pair of trips to The Finals. Rasheed Wallace, though not a franchise player, was acquired by the Detroit Pistons from the Atlanta Hawks in 2004. A few months later, he and the Pistons upset the Los Angeles Lakers in The Finals. Back in 1975, Kareem Abdul-Jabbar asked out of Milwaukee and landed with the Lakers, just a few seasons before their "Showtime" era launched.

Leonard fit that description last summer. After playing just nine games due to a quad injury and the bad vibes between him and the San Antonio Spurs that developed from it, the 2014 Finals MVP was on the market. And Ujiri pounced at the chance to get his missing piece.

Opinions varied on the Leonard-DeRozan trade when it happened last summer.

Truthfully, the only gamble was this: With LeBron gone, Toronto’s chances of moving into June were instantly enhanced. LeBron had closed out the Raptors in three straight postseasons. Ujiri could’ve stayed put, but he went with his instincts and pulled the trigger, even without assurances that Leonard would re-sign this summer. That essentially made him a one-year rental.

But Ujiri planned to shake up the team anyway, suspecting the Raptors had gone as far as they could with DeRozan and Kyle Lowry. Other GMs would’ve played it safe, but he didn't, opting for a high-risk, (potentially) high-reward move.

Kawhi Leonard keyed the Raptors' epic rally in Game 6 of the East finals.

The notion that all of Canada was incensed by the trade is faulty. Fans loved DeRozan because, unlike Vince Carter, Tracy McGrady and Chris Bosh before him, DeRozan wanted to be in Toronto. Carter leveraged himself out of town, T-Mac wanted his own team and Bosh bolted to help create "The Big Three" in Miami. But these underrated basketball fans are smart, and they knew Kawhi was an upgrade on both ends of the court.

The only person in Canada whose feelings were hurt was Lowry, who is tight with DeRozan and for weeks refused to speak to Ujiri. But with a $500,000 bonus for reaching The Finals and a chance to win a ring, he’s good.

How Leonard trade paid off

Ujiri with Kawhi and Danny Green, players he obtained from the Spurs.

The Raptors did everything Leonard asked in terms of protecting and preserving his body from injury, and therefore the Raptors did themselves a favor in the process.

Feeling refreshed and refocused from a season of light wear and regular rest (and sensitivity from the organization), Leonard returned with a renewed spirit. For the first time since before his injury, Leonard felt his organization -- from ownership to the front office to the coaching staff and the locker room -- was totally behind him.

So the least Leonard could do was deliver, and he has -- and then some.

Relive some of the best dunks from the 2019 conference finals.

In the 2016-17 season, the Spurs had just seen Tim Duncan retire and franchise stars Tony Parker and Manu Ginobili were diminished by age. Yet Leonard dropped hints that he could be "The Guy" for the Spurs, averaging 25.5 points per game while emerging as a two-way star and Kia MVP contender.

This is the Kawhi the Raptors saw this season, with more of a willingness to be a volume shooter and sharper passer out of double-teams, while never neglecting his defense. The postseason has shown more of an uptick, with a special emphasis on end-of-the-game presence (as the Philadelphia 76ers and Milwaukee Bucks painfully discovered). In the afterglow of the Eastern Conference finals title, Ujiri called Kawhi “the greatest player in the game.”

Masai Ujiri had high praise for Kawhi Leonard after Game 6 of the East finals.

He has been the anti-DeRozan in springtime. Too often, DeRozan had a pattern of performances that ranged from respectable to regrettable, rarely raising his play when games mattered most. It was this pattern from DeRozan (and to be fair, Lowry, too) that convinced Ujiri that DeRozan, while beloved, could never be That Guy the Raptors needed for the next step.

Almost instantly, Kawhi’s teammates -- and most notably Lowry -- yielded to him in what is was the ultimate respect any newcomer could get.

A trip to The Finals was exactly what Ujiri wanted from the trade, a chance to reward Raptors' fans for their loyalty and support. And, perhaps, this experience could sway Kawhi this June when free agency looms.

Anyone in Toronto on game days during the playoffs could see the benefits of trading for Kawhi: Crazed fans standing outside at “Jurassic Park,” bars and restaurants jammed, merchandise selling briskly, every seat taken at Scotiabank. And there was hope.

Suppose this is all short-lived and Kawhi is just passing through? Well, then …

Why trade was right even if Kawhi leaves

What’s the old saying? Better to have loved Leonard than never to have had the chance to love him?

He came, he “clawed,” he conquered. Mostly, he gave Toronto a season to remember, maybe even forever if he and the Raptors pull off a stunning upset in a few weeks.

Inside The NBA reflects on the Raptors' win that clinched their Finals berth.

If the relationship is indeed brief, then there’s no hard feelings anywhere. Not from Ujiri, not from Leonard's teammates and certainly not from the fans. Leonard will not get the Spurs treatment if he returns next season in another uniform. No promises were made and therefore, none broken.

But enough of the sentimentality. Should he leave, then in retrospect, how much did that trade cost the Raptors?

Then again, where were they headed without him? Most likely, they would’ve been a 45-to 50-win team with an early expiration date each spring. The DeRozan-Lowry Raptors had maxed out and change was coming anyway.

Without Leonard, Ujiri has a chance to retool the Raptors around Pascal Siakim, a young potential star should he keep taking leaps. The Raptors would need to bite the money bullet for only next season. Their payroll drops considerably in the summer of 2020 once the contracts of Lowry ($33 million next season), Marc Gasol ($25 million) and Serge Ibaka ($23 million) vanish. It’s possible Ujiri could trade one or more of those expiring contracts -- although not at the expense of taking back bad money just to win a few more games in 2019-20.

What will be the biggest factor for the Raptors in The Finals?

Then the question is: Would free agents be attracted to Toronto? First and foremost, free agents are attracted to money. And stable management. And world class cities. And frigid temperatures. (Well, scratch that last one.)

If anything, a favorable salary cap and a few assets would be just the challenge that a top-flight team president would crave. He’d have options.

Ujiri pulled off a trade last summer that took guts and a reasonable risk ... yet it worked out. The real risk now is with anyone who thinks he couldn’t pull off something else.

That’s the scenario if there’s no Kawhi. Ujiri can stay patient for a year and then roll up the sleeves and go to work. Or he can spare himself that chore and go to work this summer and convince Kawhi to stay.

Can you imagine what his palms and knuckles would look like then?