Port have a pattern of their kids looking very good early but failing to continue to improve.I'm not convinced they will. I think they over-achieved in the covid season, but I don't see a cliff. They've got some great young talent coming through to replace ageing stars. Trade/FA in for a need or 5 and cliffs are easily avoided for a while. Whether it's a formula for a flag is doubtful, more like a successful period of 6-10 with the odd higher finish. Not exactly the same, but along the same lines as the Cats model.
Look at how people were raving about SPP once upon a time.