First off, Schaub has shown he is a better QB than Vick, but Atlanta has an owner who just spent big bucks on the team, training camp, etc. Blank only cares about putting butts in seats at the Dome and Vick draws in the Metro Atlanta population. Most people from outside the metro area don't commute in for Falcon games, and if Schaub was to start over Vick, Metro Atlanta won't turn out. Poor turn out = empty seats, so they won't do it. Just watch a Braves game if you don't believe me, hell they win all the time and the ballpark is empty. Only a few commute from the suburbs for sporting events, but not enough to make a difference.
As for getting Schaub, dream on. There's no way in hell we'd give up a first and third as Atlanta will be asking for the RFA if he's not resigned sooner. With Patrino in now, there is no loyalty to Vick, and Schaub may not even become available like he was under Jim Moron Jr.