Building a winning NFL team isn't like any other construction
project.  NFL executives have a budget, a crew, equipment and
raw materials—but the wrecking balls start swinging the instant
they're done; all they can do is hope more of their building
survives 17 weeks of destruction than any of the other 31
buildings on the same block.  A year after they started, they
salvage what they can from the wreckage and start all over
again.  In today's NFL, the salary cap is stubbornly flat,
making budgets tight around the league. There's only so much cap
money to go around, and the average annual value of big-money
contracts seems to go up with each new contract extension.  NFL
executives can't just try to get good players at every spot on
the roster; market prices and the salary cap force them to
approach roster-building with a clear philosophy. Which
positions will be strengths? Which positions will have depth? If
any positions have strength and depth, where will they skimp?
Surveying today's NFL landscape, is ther