Why do you combine Smith with Vick? One just wins games with few mistakes made and the other one does the opposite.
Arguably the worse part of Fitz was his in opportune turnovers, which would invariably lead to our D not being able to stop the opposing team's offense. This would be one of the major reasons we would lose. It was not so much our offense's ability to put points on the board. Now, Vick. Not only could he not put up the points, as you astutely point out, he's worse than Fitz in the turnover department.