How long should a successful rebuild take?

There's been a lot of talk around here about wanting the Saints to do a complete rebuild of the team so that the fans can once again have a team that we can all be proud of. But you're probably asking, "How long to do what?" True, what is considered a successful rebuild by one fan can be quite different from another. If you're wanting to reshuffle the cards in hopes of a royal flush you can't reasonably expect to get that hand as quickly as you might get a full house.

For conversation purposes we'll just add into the equation the goal of being better than the 4th Seed in the NFL playoffs. Let's face it, in today's NFL it's not unusual for the 4th Seed in the playoffs to still be a pretty mediocre ball club if they got there simply because they happened to be in a division where every team in it is a dumpster fire. We've seen in some case where the 5th, 6th, & 7th seeded wildcard teams are much better than the winner of the worst division in the conference.

So the question is, 'How long should it take a team who is rebuilding at every key position to become one of the top three seeded teams in your conference playoffs on a regular basis?' And as a bonus discussion, 'Who has the primary role of fielding a team that is capable of achieving that goal on a consistent basis?'

Is it reasonable to assume that such a goal could be reached fairly quickly? :unsure:
There's alot of complexity to that question. I see alot of people talk about Sean Payton, but one reason I believe Sean Payton was so successful as quickly as he was because he was ahead of his time and above the curve. His Utilization of Reggie Bush, Basically he was Deebo Samual, matching reggie on slow line backers, making Safeties cover Colston. Numerous examples. But Over time the Division Caught up with Payton then finally the league as well and here lies I believe is the Saints issues and rebuilding process. It feels we are trying to build off of Payton's foundation, DA and PC so it feels we are behind now. Examples successful teams are moving away pocket passers, we still have one. Teams utilizing motion we just Hire Kubiak but we already 4-5 years behind and Kubiak needs a year or 2 to draft and get FA and players to stay healthy. On Def we are very old and slow and cant be relied on to carry an offense. So if we draft a QB he will have a bad year or 2 to start and our def cant keep the game close we be the Bears. If we sign older non mobile QB we got what we got now. I think alot needs to go right for a 3yr turn around IMO