Having worked around the corner from the Brown Derby Restaurant for over 10 years, I have enjoyed numerous Cobb Salads, where it originated. It is almost impossible to find a properly prepared Cobb, although many good restaurants advertise it on their menus.
Often the restaurant will have all the ingredients of the original Cobb salad but miss the one key process, which makes a Cobb Salad complete. That step is diced ingredients. The Cobb was served in a large salad bowl, with a mound of chopped greens, then all of the ingredients, also chopped , lined up on the greens like a rainbow. The server would then dress the salad and proceed to toss ALL ingredients, then serve the salad on individual plates. The uniqueness of the salad is each bite would contain a bite of each ingredient. It really makes a big difference in the enjoyement of the salad. I make this at home and have received nothing but raves from people who have not had it before.
My experience is that many restaurants serve their "Cobb Salad" more like a deluxe Chef's salad, with the ingredients in large pieces eaten individually.
Hope this is helpful