Top knotch dogs come from lesser parents?

So we are all looking for THAT dog! One that can aquire scent, diagnose the track, locate, and bay. (Sorry catch dog fanatics) My question is can you breed 2 good dogs that possess traits that complimet one another's weaknesses to create THAT dog. For example, can you cover a gyp who possesses the ability to diagnose a track and locate with a stud dog that has a cold nose and stick to create THAT dog. Will the best traits of both parents be expressed in their offspring? Experince tells me that if you have 2 good Walker dogs you can do this to create a good coon dog. My minimal hog dogging experience tells me you need a pack of specialists to get it done.