The Trade Was Green for a Second-Round Pick
Basketball-Reference's league, Kansas City and San Antonio transaction ledgers agree on the September 13, 1979 core exchange. The Kings acquired Mike Green and the Spurs received Kansas City's 1980 second-round pick, later No. 39 overall. The frozen Kansas City source record also includes cash going to San Antonio. The public transaction ledgers reviewed for this review do not provide a cash amount, so the cash is preserved as an unresolved term and receives no numerical value in the grade.
Green Played 21 Games for Kansas City
Green joined a Kings team that went 47-35 and reached the 1980 playoffs. He appeared in 21 regular-season games, averaging 7.7 points, 5.4 rebounds and 21.9 minutes. Those 21 games were the final NBA appearances of his career. Green still supplied usable frontcourt minutes, but Kansas City did not receive a multi-season return or a later trade branch from the player.
San Antonio Used the Pick on Michael Wiley
The Spurs kept the second-round pick and selected Michael Wiley at No. 39 in the 1980 NBA Draft. That makes the draft outcome direct rather than speculative. Wiley played 33 regular-season games for San Antonio in 1980-81. NBA.com lists him at 5.7 points, 1.9 rebounds and 8.2 minutes per game. He also appeared in three playoff games, although his postseason role totaled only five minutes. San Antonio waived Wiley on October 27, 1981. He then played one more NBA season with San Diego, but that Clippers production does not belong to the Spurs' realized return.
Why San Antonio Gets the Slight Edge
Neither side uncovered major value. Kansas City received 21 games from Green, while San Antonio turned the pick into 33 regular-season Wiley games plus three brief playoff appearances. The Spurs therefore received a little more direct team service from the primary asset. Any cash would only strengthen San Antonio's side, but this review does not rely on it because the amount is not documented in the reviewed public records.
Final Verdict
Slight Spurs Edge, B-/C+. San Antonio receives a B- for converting the pick into 33 Wiley games and a small playoff contribution. Kansas City receives a C+ for 21 useful Green games, but the return ended after one season and produced no further realized branch.