I'm not concerned about Giles' technicals. He's getting over-matched physically and is doing his best to compensate. He's not a head case; just a young competitor trying to navigate in the waters of what is acceptable and what is not in the NBA, and also trying to protect his turf.
The main question I have with him going forward is who does he get matched up with on the defensive side of the ball? If you have him guarding guys that outweigh him by 50 pounds or more, it's going to be a problem. He's playing out of his weight class. It may work on the offensive end, but he's just going to get beat up on the defensive end, especially if his minutes go up a lot next year, which hopefully they will. I really want to see him matched up against 4s, and even some 3s going forward so he's not getting physically pounded on by opposing physical centers. Kayte H. has speculated that Giles isn't getting the minutes because of his propensity for fouling. That is possible, especially because we know Joerger likes to "prevent" guys from being fouled out as much as possible (a pet peeve of mine). It's also possible that Joerger, management and the medical staff don't think it's a good idea for a guy with Harry's injury history to be pounded on for 30+ minutes a game by guys much bigger than him. I sure hope next year this will change.