Ruth's problem was actually that he almost never wrestled in MMA for some reason.
It was as if he figured he would never reach the top without improving his striking and he had freakishly long reach, so he basically used used his striking and not his wrestling at all.
Maybe he just did it to expose the truth to himself more quickly so he wouldn't waste time on something if it didn't come quick, I don't know. But I remember getting mad that Ruth never took his opponents down. I figured he could unleash a Jon Jones style hElbows from on top.