The Detroit Pistons refused to let their season end yesterday and delivered one of the most extraordinary performances at the Kia Center, defeating the Orlando Magic 93-79 in Game 6 of the first-round series. Detroit turned things up defensively, controlled the glass, and completely flipped the script diminishing a 24-point deficit. With this standout win in the books, let's break down the grades for the Pistons.  Cade Cunningham: A+ Cade Cunningham was truly the captain of the ship. In another epic performance, the All-Star finished with 32 points, 10 rebounds, four steals and one block. Whenever Detroit needed a bucket, he delivered in crunch time. Tobias Harris: A- The veteran delivered a strong supporting performance with a 22-point, 10 rebound double-double.…