Didn't read the article.
But to the question posed the the thread title...
It all depends on how Murray handles the boatload of prospects he has at his disposal.
If he plugs them into the lineup and forms a "futures roster" - much like ones you see on HF all the time - the team will falter and be stuck in a never-ending rebuild, much like Edmonton.
If he dangles the high-end depth that he has in the pipeline to add legitimate NHLers, they'll be better faster (obviously).
Murray should be doing everything in his power to add the O'Reillys of the league this offseason. He has the ammo to get it done and he has the depth to lessen the blow of losing prospects like Baptiste, Compher, Fasching, even Zadorov and Grigorenko -- everyone.
I think he'll do what it takes. But it won't be in one offseason. McDavid/Eichel won't be enough to turn this team around.
Though I quite like the idea of O'Reilly-McDavid-xxx and Girgensons-Reinhart-xxx in the future.