MIAMI — The San Antonio Spurs were well on their way to obliterating all kinds of records for shooting proficiency, and the one man who might have allowed himself to delight in what was happening Tuesday night at American Airlines Arena instead seemed completely unaffected by it all.

Chip Engelland, an assistant coach for the Spurs, is also the team’s designated shooting guru. He counsels and instructs, dismantles and reassembles. His work with individual players is sometimes painful: fixing a squeaky (or downright broken) jump shot often means that things get worse before they get better. But such is the price that must be paid in pursuit of consistency.

“The objective is just to be solid,” Engelland said Wednesday afternoon, “so when the coach calls your name, he knows he’s going to get a consistent performance from you, which is hard to do.”

It was Engelland’s indirect way of addressing the Spurs’ 111-92 victory in Game 3 of the N.B.A. finals, which featured offensive fireworks seldom seen in the playoffs. San Antonio, which has a 2-1 series lead entering Game 4 on Thursday, set finals records by shooting 86.7 percent in the first quarter and 75.8 percent in the first half, generating 71 points while attempting 33 field goals.