I understand your interpretation of facts, but you need to look up the definition of “analogy.” I didn’t make an analogy.I get your point, but this was a bad analogy. SD didn't give up on him, at least not in the way you are implying.
When Brees left SD he was coming off a pretty major injury. There were legitimate concerns he may never be able to play again. That, combined with drafting Rivers 2 years earlier, is why SD moved on from him. But he beat out Rivers in both 2004 and 2005 for the starting job and was one of the best QBs in the league both seasons.