OakleyDokely wrote:
Sure, you need some cheap young talent, but no team has a roster full of it.  
For example, within the constraints of a budget, value can be found in some players with large contracts that teams want to dump for literally nothing of value (personnel) to shed salary.  Big contract cost, but cheap acquisition cost and impactful on the field.  Teams that can spend a little more, can take advantage of this.
For a time. More than a couple of those players and you are presented with an opportunity cost: namely, dollars that cannot be spent elsewhere. 
And 'some' is a pretty wide range between none and all. But one thing is always certain: the more players you have making pennies and producing well, the more guys with big contracts you can afford. Because we shed a bunch of rather good players who'd still be making $500k, we have been forced to hit the market to fill that hole. And because we have had to fill so many holes in free agency, we cannot buy at the top of the market (and we may have great difficulty retaining our own free agents in a year).