Most important thing I learned is that "just sprawling" doesn't work with good wrestlers. Don't get too confident after stopping a shot, thinking it's all over and underestimating the risk.
It's a continuous flow. Good wrestlers will already be ready for your sprawl and will have a plan B, C or D. Some people even specialize on this.
If you fall for the illusion that sprawling on a good wrestler will be enough to stop them, it won't. They will chain switches, drags, sit ups, turn corners. It would be like thinking that just because you blocked a boxers 1-2, there's no 3 on the way.
After sprawling you have to keep defending or counter attack. If you just lay on them, you will be in trouble 99/100 times against any decent wrestler.