The September 25 Trade Is Clear
Basketball-Reference's Detroit, Seattle and league transaction ledgers agree on the structure: the Pistons sent a 1978 first-round pick to the SuperSonics for Archie Clark on September 25, 1975. Oscar Feldman's Detroit executive record and Bill Russell's Seattle record confirm the same deal. The legacy archive entry was dated September 24 and mislabeled Seattle under the modern Oklahoma City franchise name in its prose. The source-backed repair corrects the transaction date while preserving the franchise key used by the archive.
Clark Gave Detroit One Useful Season
Archie Clark played 79 regular-season games for Detroit in 1975-76 and averaged 7.6 points, 2.8 assists and 1.7 rebounds in 20.1 minutes. He also appeared in all nine of the Pistons' playoff games, averaging 8.0 points in 21.3 minutes. Clark was no longer the All-Star-level scorer he had been earlier in the decade, but he was a legitimate veteran rotation player on a playoff team. Detroit's return therefore deserves more credit than a low-end rental grade.
The Detroit Pick Stayed Valuable for Seattle
Seattle held the acquired first-round pick for more than two years. On November 11, 1977, the SuperSonics traded that Detroit-origin 1978 first-rounder and a 1979 second-round pick to Portland for Wally Walker. This distinction matters because Seattle never used the first-rounder to draft Ron Brewer. Portland became the later holder and selected Brewer at No. 7 in 1978. The archive should record Brewer as the eventual pick outcome but should not assign his NBA career directly to Seattle.
Walker Produced Real Downstream Value
The defensible downstream credit is Wally Walker. After the November 1977 trade, Walker played 68 regular-season games for Seattle in 1977-78 and all 20 playoff games during the SuperSonics' run to the NBA Finals. He returned for 60 regular-season games in 1978-79 and appeared in 13 playoff games as Seattle won the NBA championship. Walker remained with the franchise into 1979-80. Because Seattle also surrendered a second-round pick in the Walker trade, the Detroit first-rounder cannot receive full credit for Walker's entire tenure, but it was a major component of the acquisition.
Detroit's Branch Ended Quickly
Clark's Pistons tenure ended after the 1975-76 season. Detroit waived him on July 28, 1976, and he did not play another NBA regular-season game. That leaves the Pistons with one season of useful veteran depth and playoff minutes but no later trade return or retained asset. Seattle, by contrast, carried the first-round value forward and converted it into part of a package for a younger rotation player who contributed across multiple playoff runs.
Final Verdict
SuperSonics Win, A-/B. Seattle receives an A- because a first-round pick acquired for a veteran nearing the end of his career retained enough value to help acquire Wally Walker, who contributed to the 1978 Finals run and 1979 championship. The grade stops short of an A or A+ because Seattle also surrendered a 1979 second-round pick in the Walker trade and did not itself draft Ron Brewer. Detroit receives a B because Clark gave the Pistons 79 regular-season games and nine playoff appearances, a useful one-season return even though the team waived him the next summer. Confidence is high on the September 25 date, Clark's Detroit production and the pick's later use in the Walker trade. The verdict reflects only verified transaction terms and realized team value.