McNabb could be disastrous pickup

Donovan McNabb has had quite a career, but for most teams, grabbing him would be a gamble. Howard Smith/US Presswire

If there is one common thread to most marketing disasters, it is that they seemed to be good ideas at the time. The Edsel had a number of state-of-the-art features, including self-adjusting rear brakes and gear selection via a steering-wheel button; New Coke was patterned after Pepsi's increasingly popular taste; and the Laserdisc offered superior video quality over VHS tapes.

The problem in each of these instances is this: For all the positives these items brought to the table, they also brought significant negatives that caused them to be considered bad ideas in retrospect.

This same mindset could be applied to the Donovan McNabb trade rumors.