For NFL teams, finding a starting quarterback is vital for success. Finding a quality backup is necessary insurance. And drafting quarterbacks with upside is just smart business.
With a market shortage on quality quarterbacks, landing a player with potential can lead to future success or aid in stockpiling draft picks. The Eagles under Andy Reid were the prime example of building up backup quarterbacks then swapping unproven talent for draft picks -- i.e. Kevin Kolb.
This offseason, the hot backup name is Mike Glennon, who will wither away behind Jameis Winston if the Tampa Bay Buccaneers don't swing a trade.