Did I make a good move by .....?

I did the same thing, picked up Brett as a backup on all four of my teams, just for old times sake. Dropping Stewart and picking up Thomas on your team was a great (and lucky) move on your part, as well. Now you really have a stellar team. Somebody in one of my leagues did the same stupid thing and I pounced on him. What was curious is the fact that the guy he picked up was really crappy. Go figure! Best of luck to you! (BTW, it's Favre not Farve).