If one is to believe GK121 the problems with the F35C hook are all down to the USN, this implies that LM are pure contract assemblers of the plane, relying on the USAF, USMC, USN, RN etc etc to instruct them what to build.
I thought that to begin with there was a competition between design teams as to who was to build the JSF, or did I miss a trick? If LM are just contract assemblers of the intellectual property of others, they are getting a very good profit contribution.....