DB starting a full season at all 4 positions

[Gary Najman]

J.T. Thomas was the Steelers starting LCB from 1974-1977, and their starting FS in 1979 and 1981. His replacement at LCB, Ron Johnson was the Steelers starting LCB from 1978-1980, and their starting FS in 1982 and part sof 1983.

[JohnTurney]

John named 2 in the modern (-ish) era: Kermit Alexander and Charles Woodson... were there any others?

I found quite a few examples of playing 3 different listed positions, starting basically at least one full year, others have listed a lot of them ... that is a small category --- but all four, I would be curious if there are more then the two who started at 4. Note: Charles Woodson played a lot of slot CB in nickel defenses ...