In today's National Football League it takes more than winning in the draft each season to put a Super Bowl team on the field. In addition to a strong nucleus of players, a successful general manager has to win at free agency too.
A successful free-agent class doesn't just mean adding more of the right players than wrong, it also means a team can't let talent leave when there is still gas left in the tank, unless it's fiscally wrong to keep the guy around.
For every move like the Denver Broncos adding Peyton Manning there are a handful of moves like the Miami Dolphins adding Chad Ochocinco. Ask San Diego Chargers quarterback Philip Rivers how much he missed not having wide receiver Vincent Jackson around in 2012.
It's extremely difficult to always be on the winning end of a free-agent transaction. The better general managers win more often than they lose. The GM's that lose frequently, well they don't stick around very long.
Here are free-agent moves made this offseason that are sure to backfire. Let's hope they don't get any GMs in hot water.