being the best team in the league helps
Yeah. It's a lot easier to convince guys to take a small haircut to keep a great team together. It's been the same for a bunch of top contenders over the years. Detroit was the home of the "hometown discount" forever, until they started to stink. Chicago pulled some pretty slick deals while they were competing for Cups every year. Even Vancouver had a handful of guys signing some real sweetheart deals based on an "internal cap" at the height of the Sedin era.
That said...Poile has also won big on some "gambles" with longer-term deals on middle-of-roster type players who have turned into absolute stud, top-of-roster type players for him. Which
is legitimately impressive, and more than just having a good team to sell impending FAs on. Getting guys like Ekholm, Arvidsson, Jarnkrok, Ellis for the past bunch of years, etc. locked up on steal contracts with term has been huge for his flexibility dealing with other players.