Depends on your end objective. If you want the team to be successful and ensure another year of Garrett, then you take Bortles. If you want this team to suck and get a higher draft pick and the coaching staff to be fired, then you go Dak. Bortles is by no means a good QB but he is a MASSIVE improvement over this clown we run out there every week.
Bortles is a turnover machine. He's Eli Manning without the fluke rings to give him a pass. And Bortles is more experienced than Dak and has fewer excuses.