you plan on adressing that the development of the B-Wing was due to the development of the Nebulon-B Frigate?
Paraphrasing from most soucre material:
Then Rebel ships could chew up cargo fleets and the Imp Fleet was helpless to stop it. The Neb-B gave fire power and carried a few squads of TIEs. This started chewing up the Rebel raids. The B-Wing was made to take out a Neb-B then cover the raiders.