One of the most impressive parts of the Charlotte Hornets ' meteoric rise in the second half of the season was their reliance on youth. Charlotte leaned heavily on three rookies -- Kon Knueppel, Ryan Kalkbrenner, and Sion James -- and in Tuesday night's Play-In victory over the Miami Heat, the Hornets' starting five had combined for zero playoff appearances. Charles Lee, the Hornets' head coach, isn't quite as green as his starting five, but the Play-In game was the first time Lee acted as the leading voice on a bench in a postseason game. The 41-year-old boasts a pair of championship rings from his time as an assistant in Milwaukee and Boston, but his first taste of win-or-go-home action as a head coach came on Tuesday night against one of the league's preeminent tacticians in Erik Spoelstra, and Lee held his own against the future Hall of Famer.…