I got frustrated too till I thought about it. It took me 9 games to become a starter even though I'm better than Greivis (I'm a pg on the hornets). Once I became a starter, LITERALLY THE NEXT GAME, I had 10 turnovers so the coach benched me and I lost my starting position.
It then took me 12 more games to regain the starting position.
But one thing it taught me was that I have to be careful with the basketball like in real life.
So I'm now MUCH more aware of passes I throw and running plays...valueing EVERY possession...cause now that I got the starting job, I'll be DARNED if I'm giving it back up