Can Fully Guaranteed Contracts for Quarterbacks be a New Trend?

Who had the leverage in the two years, $50 Million deal Drew Brees settled on to re-sign with the New Orleans Saints? 

Although Brees will have 27 million guaranteed, Jason Smith believes that soon, teams will start guaranteeing up to 100% of their contracts to keep elite quarterbacks who could field offers for other teams in free agency. Doug Gottlieb doesn't agree at all.

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