There is some truth in this. How much I really don't know. I suspect a little but it is poor cap management and drafting that has caused the most problems although Jerry has done on average a poor job picking HCs. Jerry is getting better as a GM. He's stopped the coaching carousel approach. The drafting and draft philosophy is getting better even though it still needs tweaking.
Garrett is still a work in progress. That will annoy some but it is what it is. He's here and the carousel has stopped. We'll see how this team progresses over the next few years. That'll annoy some more but it is the right approach once you've invested in a coach. We've assembled a pretty good coaching staff IMO. It'll probably get tweaked, too.
Finally, player acquisition has gotten better. I see that as the natural progression of cap improvement and better drafting which I attribute to Jerry, Stephen, Garrett, and the rest of the team.
As the Postman said, "Things are gettin' better".