When you have a team that has a few holes to plug, and a few positions that could use upgrading, that can be a minor undertaking or it could actually mean an overhall- depending on a lot of variables. In the Saints case I think the coaching staff if looking at it as a minor undertaking. A very important undertaking, but a very doable and realistic tweak.
The most obvious factor that will help The Saints is the confidence and swagger that will come as the result of being World Champions. As long as that doesn't get overblown it can be a huge advantage. Then there's the factor that any new player, rookie or veteran, is joining a group of champions and winners, and they had better bring their A game, their A attitude, their A mindset, their A dedication,and their A preparation. Putting in a good season to get a paycheck should be unacceptable and will be- there are high expectations still.
An additional factor is that this core group of players who have been signed and resigned get along exceptionally well. There are no TO's, Pac mans, or Albert Haynesworths. Given all this, I think Payloo and GW feel getting a cohesional group - especially on defense, is very attainable even if there are more talented players around the league that they have paseed on. They feel, IMO, that they can once again, effect the whole to be greater than the sum of the parts.
That's true mostly for defense. On offense we just have too many weapons to not excel still and we have an offensive unit that has taken just a huge amount of snaps together over the last 3 years. I haven't added the #'s up, but when you look at positions and figure in Brees, Bush, Evans, Nicks, Bushrod, Strief,Goodwin, Brown, Colston, Thomas, Moore etc- well no strangers there. Even the subs are veterans of the trenches in NO. That sure makes an Offensive coordinators job much easier. Yes, we still have some free agentsa to sign, and we all assume all or most of that will happen. But it all gets wrapped up and bound together as a package when the offense is led by the most accurate passer in NFL history.
This all makes me very confident.