They can't afford a 4th round, middle of the road guy. They have to have a franchise QB if they don't want to win 6 games every year for the next 10 years.
Who says Case isn't that guy especially if he continues the same play for the rest of the season? Who says a 3rd round qb in a deep qb draft won't be worth anything? Guys picked in the middle rounds lately include Foles, Cousins, Glennon, Wilson, etc. All have shots to be big time quarterbacks. This draft will have Bridgewater, Mariota, Boyd, Manziel, Carr, Bortles, Morris, Murray, McCarron, Mettenberger, Hundley, Fales, Price, Guiton, and Renner.