Kris -
My Uncle, who raised exhibition pigeons in one breed for over forty years, taught me several important breeder philosophies. These apply to pigeons, chickens, and probably most exhibition stock.
1. Develop a breeder's eye. You should be able to close your eyes and see a standard perfect bird. But most importantly, you should be able to see the parts that go into making your vision the standard perfect bird.
2. In development breeding, see the parts of the standard and correct them in bite sized pieces. You can't correct all the faults a line may have in a single generation and some individual faults may each take several generations. However, once a fault is eliminated, don't ever go back to it.
3. Know a bird's strengths and it's weaknesses. Breed to its strengths, but keep in mind that sometimes the best bred together don't always produce the best. ( My favorite example are my nearly white looking splashes bred from breeding my best splashes together - the pale blue just washes out. Opps, lesson learned.)
4. Learn how to correct faults through complementary matings. The likelihood of two narrow Cochins producing anything but more narrow bodies is pretty small. But a narrow body with strengths may be of value if the strengths improve a wide body line in the second or third generation.
While its true that starting with good stock with fewer faults is helpful, there can be much pride in improving lesser birds too especially if they move your breeders closer to the standard. Development breeding is designed to be a longer process than simply breeding champions from champions. In general, the first 80% of the changes can come quickly and easily. The last 10 or 20% may take a lifetime.
I knew a Buff Orpington breeder who never brought his Champion's home from a show - he sold them or gave them away. He's reason was, they were done. His pride came from being patient and working a few years to duplicating his success using the breeding knowledge gained each time. I swear, just before he died, he could take two crows and make champion Orpingtons from their line by good breeding and bringing in birds to correct their faults in a minimal number of generations.
I could be wrong about your situation, but don't get discouraged, get excited - Spring will be here before you know it.
Dave