Making bad decisions the entire second half...that's what Fitz does. You can script nearly every game/season he plays.
1. Start our surprisingly well
2. Fail to leverage a chance to turn advantage into a decisive lead. Usually involves him making completely different decisions than what had gotten him the lead (IE just throwing the ball up for grabs deep on multiple plays)
3. A couple bad mistakes that turn what had become a competitive game into a deficit
4. Some yardage and maybe even a garbage time score to make the stat line look better
It's not that much different than Rosen when all said and done, minus the garbage time production.