Just for reference:
Lets say you think the breakeven point is this years 4th OA is equal to next years 6th OA. If you finish bottom three, 100% you will get a better pick. If you finish 4th, 91.7% of the time, better pick, if you finish 5th, 69%. At 6th, 39%.
Lets say the breakeven point is 8th; 97% of the time, if you finish 6th you will end up with a better pick. 55.8% if you finish 8th you`d be better off.
Lets say you conservatively think 4th this year is even to 5th next year, bottom 4 finish is 58% or better of getting a superior pick.