Barring a trade up from a Manziel lover.
I have been waffling back and forth on this, but now I am convinced barring a trade (which is certainly not impossible), Johnny Football won't go Top 5. I thought only team that may take him is the Browns, but late word is they are not.
If you can bet Manziel Over 5.5 +130 with reasonable limits, knock yourself out. And Bortles +260 over Manziel may again have some value, but not as much as the Over 5.5.