The Oklahoma Sooners and head coach Brent Venables are moving on from Dillon Gabriel at quarterback, replacing him with the talented but inexperienced Jackson Arnold. Now, with Fall Camp underway, Venables described what’s been standing out to him about Arnold ahead of the 2024 season. “I think we’re executing at a really high level right now,” Brent Venables said. “Decision making is even better than it was. The guys around him are playing better. I think the offensive line is in a much better position than where we were in the spring. We had some guys again injured or weren’t here yet. I did…