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The contract "talk" is the biggest smoke screen of them all. Your not commiting to anything, but your getting a message across that your serious about signing someone. When the Texans drafted Mario Williams it started as a smokescreen, but as Reggie wouldn't budge from his demands, it became a reality.
The difference is that the Dolphins are only reportedly taking to Long right now, whereas the Texans were negotiating with Mario and Reggie.
If I remember right in the reggie/mario deal houston signed mario because he agreed to take the same amount that was offered to reggie which reggie did not want.
I think this could be something along that same case where they will offer the man they really want the same contract they are offering jake long which may be cheaper then a #1 DE/LB.