The San Antonio Spurs are expected to sign head coach Gregg Popovich to a three-year contract extension, putting an end to any speculation that Popovich would retire this offseason.

But what does Popovich's new deal mean for the the Spurs? Will it alter the way they build going forward?

Well, here is what Pop's extension will change in San Antonio: absolutely nothing.

Right now, the Spurs are caught in between trying to contend right now while also rebuilding. They have their two All-Star-caliber players in LaMarcus Aldridge and DeMar DeRozan, but they also have young talent such as Derrick White, Dejounte Murray (who missed all of this season with a torn ACL), Bryn Forbes, Lonnie Walker IV and Jakob Poeltl.

Really, for the first time in a while, San Antonio is teeming with young talent up and down the roster. Even after Popovich eventually leaves, the Spurs should be in good shape.

The thing with San Antonio is that it is not exactly a free-agent hot spot. Outside of Aldridge during the summer of 2016, big-name free agents simply do not sign with the Spurs. So, it's not like San Antonio is going to make any major additions this offseason.

Popovich himself even said he doesn't envision any significant changes coming, so, by and large, the Spurs' roster will remain mostly the same going into the 2019-20 campaign.

And even if San Antonio wanted to chase one of the top free agents, its chances of landing one would be very slim.

The Spurs build through the draft. This is their modus operandi, and it seems safe to say it has worked pretty well for them over the last two-plus decades. Sure, it helped getting things started by drafting Tim Duncan in 1997, as Duncan represented the tentpoles on which the Spurs built the rest of their team, but San Antonio still deserves credit for landing the Tony Parkers, Manu Ginobilis, Tiago Splitters and Kawhi Leonards of the world.

Pop and Co. have also made a living off of making shrewd free-agent signings. Think of Danny Green. Marco Belinelli. Patty Mills. Boris Diaw.

Basically, the Spurs have been able to operate just fine without splurging on stars in free agency. While the circumstances are certainly different now with no Duncan on the roster, it's hard to see San Antonio moving on from this strategy.

Yes, Popovich is 70 years old, so you might think there is more of an urgency to win while he is still on the sidelines. But, honestly, I don't think Popovich — who already has five rings — is going to push too hard for that. He is likely going to want to stay the course and continue building the team as is to set the Spurs up for future success.

Let's also keep in mind that Pop's involvement with San Antonio's organization likely won't end once he retires from coaching. He will almost surely still have a spot in the front office, so it's not like he won't still be a part of the team in four or five years when it is ready to truly contend.

The Spurs have made their bread off of being astute and thrifty. It's hard to see that changing anytime soon.