I kept the same configuration for about three races. Just biding my time and saving some cash. I made a change for this weekend, so I hope all that investment will pay off!
Getting rid of Senna was good. Replacing him with Schumi did not really help though. And maldonado. I'm sure when I drop him he wins again.. Saubers was good choise though.
The answer is easy to check using just wikipedia. Just start checking the years from the earliest and check if the championship winning driver had more than one win or not in that year