Parallel structure is a unifying design element. When multiple advertisements use parallel structure -- for example, by incorporating the same colors, visual pattern, design themes or organization ...

DISCUSSED in the preceding five chapters were the consistent use of parallel structures as key to writing more readable, more forceful, and more polished sentences. Also, for clearer and more ...

But this is correct parallel structure too, because all three stems attach to that shared subject the same way. What would happen if we mixed things up just a little in our first Brad sentence?