It simply is not that simple
Dogs are
gene pools ... and as such they have a WHOLE HOST of genetics behind them that may not be expressed in the animal itself, but can be passed on to the next generation ... this is why game dogs can produce curs ... and curs can produce game dogs
The key to breeding dogs is NOT individual excellence, it's in
reproductive prepotency, and whether the dog itself has (or can be reasonably be expected to have) this trait as a producer.
If I had a choice of breeding to a Grand Champion individual (who came from an all-cur litter, where every other littermate quit) ... or I could breed to a cold dog (who came off of an all-game/winning litter, where every other littermate was a winner and/or extremely game) ... I would breed to the cold dog in that case.
Why?
Because
the average dog of the line is better in the cold dog than the Grand Champion, and (in breeding) you get what the AVERAGE dog of the line is "on average," NOT what the "one" excellent/cold dog is.
People who know what they're doing (like Rebel Kennels) can make the best dogs in the world out of culls ... while people who don't know what they're doing can turn the best dogs in the world
into culls ... by knowing/not knowing how to breed them
Jack