If the Nets had been told a month ago they would have made it through the preseason without any serious injuries, they gladly would have signed up for that. The team’s overall good health, more than anything else, is the big takeaway from the exhibition season, which ended with a 108-87 victory over the defending champions in Miami on Friday night. “We’ve had our spurts,” Paul Pierce said of the Nets’ preseason after scoring 16 points against the Heat. “We’ve had our moments, definitely. We see the potential for this team.” The Nets have had to wait to actually see it at full force, as they have yet to have everyone on the floor at once. Deron Williams and Jason Terry sat out the early part of camp, Andrei Kirilenko missed the past two weeks with back spasms, and other players have been rested periodically in games. “We’re waiting to get healthy,” Pierce said. “We haven’t had one game where we’ve had all of the pieces together. “That’s the beautiful thing about it, I think. We’ve played well for the most part, but we still haven’t put all the pieces together,” Pierce said. Kevin Garnett was given Friday off, “but we got Deron back. We are waiting to see our full potential when we have a full, healthy squad.” Williams made his preseason debut after sitting out the first six games to recover from a sprained right ankle. It also was a month-long test run for coach Jason Kidd, as he prepares for the start of his first season on the bench — which will be delayed by two games because of suspension for pleading guilty to driving while ability impaired.