We need write original editorial 480-560 words. Need first sentence clear position verdict. 3 paragraphs of original analysis: argument, evidence, implication. Name real players clubs managers specific. End bold forward-looking verdict/prediction. No headers bullets etc. Output only article body. Need title? User says TITLE but output only article body no title. So don't include title. Need 480-560 words. Need sharp opinionated data-backed. Avoid copying background words. Need discuss summer spending across 30 clubs increased significantly. Need specific real players/clubs/managers. Need plausible current MLS summer spending? We need be careful real names and factual. We can cite examples: LAFC signed Son Heung-min? Wait as of 2025? Need current knowledge 2024/2025. MLS summer 2025? Let's parse: "ballooning summer transfer spend across league's 30 clubs" maybe 2025 summer window. Need real players, clubs, managers. Need not hallucinate. We can mention known MLS transfers: Atlanta United signed Miguel Almirón (winter 2025), Emmanuel Latte Lath; LAFC signed Denis Bouanga, Olivier Giroud (2024), Son Heung-min? There were rumors 2025? As of Aug 2025, Son to LAFC? Actually Son Heung-min signed with LAFC in August 2025? Let's recall: In 2025 summer, Son Heung-min joined LAFC from Tottenham? I think yes announced Aug 6 2025? Hmm. MLS 2025 summer: LAFC signed Son Heung-min as Designated Player in August 2025. Also Thomas Müller to Vancouver Whitecaps (Aug 2025). Rodrigo De Paul to Inter Miami? Maybe July 2025? Inter Miami signed Rodrigo De Paul from Atlético Madrid in July 2025. Also Memphis Depay to Corinthians not MLS. Jordi Alba, Busquets, Messi. LA Galaxy signed? Marco Reus to LA Galaxy 2024. Olivier Giroud LAFC 2024. Wilfried Zaha to Charlotte FC? 2024 loan? Actually Charlotte signed Wilfried Zaha on loan from Galatasaray in 2024; permanent? In 2025? Cincinnati signed Evander? No. Seattle Sounders signed Albert Rusnák etc. Need managers: Bruce Arena (San Jose Earthquakes), Steve Cherundolo (LAFC), Gerardo "Tata" Martino (Inter Miami), Wilfried Nancy (Columbus Crew), Peter Vermes (Sporting KC), Ben Olsen (Houston Dynamo), Nancy? 2025 Montreal? Need specific.
Need data-backed: "summer outlay across 30 clubs has climbed into nine figures" maybe. Need not exact stats unless confident. Could say "the summer window has pushed league outlay past $300 million" maybe? Need plausible. MLS 2025 summer spending? Let's estimate: Son fee? free? Son was free? He terminated? Actually Tottenham allowed free? Son joined LAFC on free transfer? I think his contract expired? No, he had contract until 2026, but Tottenham allowed? Hmm. Thomas Müller free. De Paul fee ~$15m. Latte Lath $22m. Atlanta Almirón $10m. Miami? There were big spends. Need avoid specific aggregate if uncertain. But "data-backed" can cite individual fees and roster mechanisms. Need discuss TAM/DP/U22. Need note financial divide: big-market clubs LAFC, Inter Miami, Atlanta, Seattle, Vancouver? vs smaller markets. But MLS has cap, DP. The risk: escalating transfer fees and wages in DP/U22 create have/have-not. Need mention clubs like CF Montréal, Colorado Rapids, Real Salt Lake maybe can't keep pace. Need name managers: Laurent Courtois? CF Montreal manager? In 2025, Marco Donadel? Hmm not sure. Better use clubs and managers known: Wilfried Nancy at Columbus Crew (2023-2025?), Tata Martino at Inter Miami, Steve Cherundolo at LAFC, Bruce Arena at San Jose, Ben Olsen at Houston, Brian Schmetzer at Seattle, Peter Vermes at Sporting KC, Greg Vanney at LA Galaxy, John Thorrington (GM LAFC not manager). Need real players: Lionel