It's no guarantee, however. After all the Raiders gave up low-round picks before last season in order to acquire Matt Flynn from the Seahawks and he ended up starting for the Bills and then the Packers before the season ended.
But the Raiders draft dynamic certainly changes. Three of our 2014 NFL Mock Drafts had the Raiders taking a quarterback (specifically, Johnny Manziel) in our latest update. Oakland still needs a passer of the future but Schaub's presence means they could take talent over need when No. 5 rolls around, or even trade down and gamble that a passer will land in their lap later.
The 2013 season was a nightmare for him but if he returns to the form he had in the previous four years this will look like a smart deal for the Raiders.