Question: What coaching position did the Spurs-Suns rivalry allegedly prevent ''Coach Pop'' from acquiring?
Sentence (from "Spurs–Suns rivalry"): It began in the 1990s, when the Spurs were led by "The Admiral", David Robinson, and the Phoenix Suns were propelled by a number of players, including Dan Majerle, Kevin Johnson, and Tom Chambers.
Relevant evidence: No