Looking back at some of the recent Calder Cup champs, the Norfolk Admirals in 2012 (Tampa Bay Lightning) had Tyler Johnson, Alex Killorn, and Ondrej Palat. That team finished with 113 standings points. 3 years later the Bolts were in the Finals with those 3 guys on that roster, plus other guys who were big contributors for the Syracuse Crunch (their AHL team following that 2012 team) the following two seasons.
The Cleveland Monsters (Blue Jackets) when they won the Calder in 2016 had Oliver Bjorkstrand, Sonny Milano, and Josh Anderson on the roster, plus Zach Werenski who signed after U of Michigans season had concluded in March of that year.
It seems that the good AHL teams have some NHL talent, not superstars but guys who can play top-6 or 9 minutes. And, flipping the young talent for proven talent is always an option.