You have to make a really strong argument why it would be suboptimal - and without spherical cow level microeconomic lies.
Crony capitalism only causes problems because it is not transparent who rules, while generating waste from those that don't and fail.
But corporatism isn't the answer, on even a superficial look. Crony capitalism generates waste from those who fail because they are locked out. But corporatism is wasteful, too, of those who in an open system could have tried and succeeded, but in corporatism are locked out and know it, and therefore don't even bother to try.
Well, that, and that there's really only so much practical difference between de facto intermingling of the public and private sectors and de jure intermingling of the public and private sectors. Both invite rampant corruption and abuse.