I think that Ted has been a professional debater/arguer for his entire career. His primary accomplishments in the Senate are based on his innate ability to oppose what is going on. While that is valuable, he has demonstrated zero leadership skills in an overtly hostile environment.
So, if he gets to the oval office I don’t see any reason why he will be able to build consensus and get things done. He has not demonstrated this capability to date.
But he does believe in Jesus...
This is an important argument, but it has a premise that is not well-founded, viz., that the President is responsible for enacting an agenda. That's the way we've done business under the Imperial Presidency post-World War II, but it isn't a soundly constitutional division of roles. That is why the leadership in Congress is important and why the congressional committees are important and not just as lube-point nipples for greasing up the Congress.
If Ted Cruz is elected, I would expect to see a 19th-century congressional caucus at work passing legislation timely and in good order under the original rules of the Congress.