The Pistons are 10 games into the season and with a 7-3 record, are a half-game behind the Celtics for the best record in the NBA.No typos — best record in the NBA.It’s the Pistons’ best 10-game start since the 2008-09 season — the last year of the “Goin’ to Work” era — and they’re making more believer with each additional victory. With Saturday’s victory over the Kings, the Pistons have won two straight and five of their last six.While there were some questions about whether the early start was a fluke, the last five games have shown there’s reason for optimism.The Lakers loss was disappointing, but it doesn’t overshadow the impressive road wins over the Warriors and Clippers.In that 10-game start, the Pistons have the same record as the Warriors and Rockets and it hasn’t come against the dregs of the NBA. Before Saturday’s game, the Pistons’ opponents had a combined record of 31-22 (58 percent).Even the three teams to beat the Pistons — the Wizards, Sixers and Lakers — started a combined 13-13, so there aren’t any bad losses. Sure, it’s still early, but there’s evidence to suggest that the Pistons are playing their best ball in years.The…