IF YOUR COUSIN tells you he’s thinking of taking a vacation to Chechnya, do you wait to see whether he gets back safely before weighing in? I hope not. Some plans carry such obvious costs and benefits, they deserve to be evaluated before they’re executed. So it is with trading NFL draft picks, and specifically with the blockbuster deals in which the top two selections in the 2016 draft changed hands. Whatever you hear to the contrary, we don’t need to see how the careers of Jared Goff and Carson Wentz turn out to understand this: The Titans fleeced the Rams, and the Browns ran circles around the Eagles.