i hope he leave Beth to start his own company then we will see another great sandbox RPG ..
You mean: I hope he leaves Bethesda to start his own studio, then we will see more great sandbox RPG's?
I could agree to that. Todd was also the lead designer for Morrowind, and he was already involved with TES when Beth made Daggerfall. I think Morrowind, even though it was limited by the technology of the day, certainly qualified as a great (and unique) sandbox RPG. Perhaps the current direction of TES might not be totally agreeable, for me it isn't for various reasons, but Bethesda's games have always been quite unique as sandbox RPG's. Not always the greatest imho, but certainly noteworthy and defining.