I agree with the headline that Cruz is using Trump well, but Trump is also using Cruz well
Trump has the Pizzazz, flair, mass media appeal factor
and
Cruz has the legitimate or well-established policies
they combine excellently, though we still don’t know what the final porridge will taste like
Drop in a little Sessions, Palin, Bolton and West for more flavor.
It is called synergism when two people work together instead of back stabbing each other.