SC is an open primary. That's not tailor made for Cruz.
74% self identify as Born Again or Evangelical. Think about it.
Yes, Cruz was supposed to win there and he's limping going into the SEC, no matter what happens in Nevada.
Hell, a win in SC was part of Cruz's strategy ever since Iowa. He spent millions on ads, and far more on organization and ground game. He was heavily invested there.
He may not even win Texas.