While the first couple days of NFL free agency contain plenty of suspense and excitement—as does the legal-tampering period before free agency—the second wave of free agency is where some of the most important decisions are actually made.
It isn't that tough a decision to throw resources at top-tier talents. It's tougher to part with a receiver you recently paid a bonus to—as the Oakland Raiders did on Thursday—or to trade away a quarterback you realize is no longer your franchise quarterback.
This is exactly what happened when the Miami Dolphins decided to deal Ryan Tannhilll to the Tennessee Titans.