In the 2023 Journal of Sports Economics, researchers found that NBA expansion drafts triggered an average 31% roster turnover across existing franchises within the first two seasons — and women’s professional leagues showed an even steeper redistribution curve when new markets entered.

Thirty-one percent. That is not a footnote. That is nearly one in three players moving.

Nobody is talking about this, but they should be. The Portland Fire and San Francisco Valkyries are not just adding seats to the arena. They are pulling a structural thread that runs through every single WNBA roster right now. And the argument about whether that is good or catastrophic for the league is genuinely unresolved — with smart people sitting hard on both sides.

Let’s settle it.

Side A: Expansion Is a Rising Tide

The optimist camp has real data behind it. Proponents of aggressive expansion point to a 2024 WNBA league office report showing that the two incoming franchises will collectively create 34 new roster spots. For a league that has historically squeezed elite international talent into a brutal 12-player limit, that number represents something close to revolution.

Here is what the numbers tell us on this side of the argument. Players like Stephanie Soares, a 6'3" center who averaged a 19.4 PER in limited Brazilian league minutes in 2023 according to Basketball Reference, have been waiting years for a legitimate pathway. Have you checked what Soares is doing with Portland’s minutes yet? If you haven’t, you’re already behind the story.

The expansion advocates also point to the salary compression problem. A 2023 Sports Business Journal analysis found that the WNBA’s middle-tier salary band, covering players earning between $75,000 and $105,000 annually, had not meaningfully grown in real terms since 2018. New franchises with fresh cap space and an urgent need to build fan bases around recognizable names are now bidding competitively for exactly those mid-tier players. That competition is pushing salaries upward across the whole market.

Lexie Hull is a perfect case study. After three seasons of serviceable production at Indiana, she becomes a genuinely attractive expansion target: young, defensively versatile, contract-controlled. The Valkyries or Fire could offer her a starting role she would never see in Indiana’s current depth chart. For Hull and players like her, expansion is not disruption. It is opportunity.

Side B: Established Teams Are Actually Feeling Real Pressure

Think expansion only affects the new franchises? Think again.

The other camp — and this group includes several front-office voices speaking off the record to The Athletic in early 2025 — argues that talent redistribution does not lift all boats. It drains the ones that built something. The 2023 JSE study showed a sharp finding: teams with the deepest benches of cost-controlled, developed talent faced the highest redistribution rates. That number should bother every GM in the league. Expansion teams do not hunt raw prospects. They hunt your finished depth pieces.

The finding was consistent across three separate leagues studied. I have not seen a single mainstream outlet lead with this. That is a problem.

The logic works like this. A team like Seattle, which has spent years developing second and third-unit players into reliable rotation pieces, suddenly watches those players get offers that a championship-contending team simply cannot match in the middle of a competitive window. The Valkyries do not need to win immediately. They need to be interesting. Those are very different financial mandates.

Did You Know: According to the 2023 Journal of Sports Economics study on professional league expansion, the franchises most likely to lose depth talent are those that finished in the top half of their league in the two seasons preceding expansion — not the struggling teams most fans assume are most vulnerable.

Which expansion team are you actually watching this season, and why? Because the answer might tell you something about where you think the talent is flowing.

The pressure on established rosters also shows up in coaching instability. A 2024 ESPN Analytics internal memo, cited by The Ringer, noted that leagues experiencing expansion see a 22% spike in mid-tier coaching staff departures in the 18 months following new franchise launches. Development coaches follow developed players. When the players leave, so does the institutional knowledge.

Pro Tip: Go to Her Hoop Stats right now and filter 2024 WNBA players aged 23 to 26 with a PER above 13.0 and under 24 minutes of playing time. That list is essentially a scouting report for what Portland and San Francisco are targeting. Build your own watchlist before the mainstream analysts catch up.

Why the Research Points to One Clear Winner

I know, I know — that sounds like both sides have a point, so why pick one? Bear with me.

Here is what the numbers tell us when you pull back to the full picture. The JSE study tracked six expansion events across women’s professional leagues globally between 2005 and 2022. In five of those six cases, league-wide median salary increased within three years of expansion. In four of six cases, average minutes per player across all rosters also increased, because expansion forced teams to renegotiate roster construction entirely rather than hoard depth they could no longer afford to keep.

The disruption is real. The pain for established rosters is real. But the trajectory bends toward a healthier, wider league.

The side arguing that expansion destroys competitive balance is making a short-term observation about a long-term restructuring. Seattle loses a rotation piece. The league gains a market. Those are not equivalent losses. The talent does not disappear. It redistributes. And redistribution, in a league that has historically undervalued and underexposed most of its players, is not a crisis. It is overdue correction.

Are you watching the free agency moves this summer with that framing in mind? You should be. Because the teams that will struggle are the ones treating this like a threat instead of a structural reset.

Warning: Do not assume expansion pressure only hits weak rosters. The 2023 JSE study showed that teams with the deepest benches of cost-controlled talent actually faced higher redistribution rates because expansion teams specifically hunted developed depth, not raw prospects. Any analysis ignoring the free agency power shift created by expansion will misread roster decisions on half the league. Skip those takes.

The real story of this WNBA era is not which new franchise wins a championship first. It is whether the league’s established power structures adapt quickly enough to survive a talent market they no longer fully control. The teams that read this redistribution correctly will build smarter. The ones that don’t will spend three years wondering why their depth disappeared.

This is what fans actually need to know: expansion is not an event. It is a pressure system. And it is already reshaping every roster in the league, whether those teams acknowledge it or not.

Your Next 3 Steps

Step 1. Go to Her Hoop Stats right now and filter 2024 WNBA players aged 23 to 26 with a PER above 13.0 and under 24 minutes of playing time. Write down every name on that list. That is your redistribution watchlist — the exact profile both expansion franchises are building around.

Step 2. Follow either the Portland Fire or San Francisco Valkyries through their first 10 regular season games and track one specific thing: starter minutes for players who were rotation depth on established rosters last season. If those minutes are climbing, the redistribution thesis is playing out in real time.

Step 3. Bookmark the 2023 Journal of Sports Economics expansion study and set a Google Alert for “WNBA roster transactions” through July 2025. Then compare what the study predicted about salary movement to what WNBA free agency reporting actually shows by midseason. The gap between the projection and the reality is where the real analysis lives.