Based on their rookie years I project Cam Newton will be the greatest QB ever and Peyton Manning to be a first round bust. How did I do? Seriously though, is there any evidence to suggest you can project a QB's career based on his rookie season stats? I know you can predict flat out busts if the player looks shell shocked or whatever but Tannehill has shown flashes of being good and does not look scared at all. Beyond that you just need to wait and see how he develops with a few seasons under his belt.