The San Antonio Spurs might be in trouble. On the surface, things appear to be OK. The Spurs have executed their defensive game plan, which is to turn LeBron James into a passer. They have prevented the Miami Heat from turning either game into an extended relay race. And most important, they secured a split of the first two games as the road team, which is practically mandatory in the 2-3-2 format of the NBA Finals. Beneath the surface, however, the Spurs