Kemba Walker getting benched isn’t his problem, it’s his coach’s … so says Kenny “The Jet” Smith, who tells TMZ Sports the guard is a Ferrari and Tom Thibodeau doesn’t know how to drive it. The 31-year-old hooper was removed from the Knicks rotation earlier this week … as he’s been averaging career lows in almost every major category this season. Once backup Alec Burks came in and balled out with 23 points against the Hawks on Saturday, Thibs decided to pull Walker out of the starting lineup AND the rotation altogether.