And he might never turn it around. But head cases pay a bigger price than most for lousy coaching. We know Baker has the talent. Let's see what some coaching can do for him, see if he can be an NFL WR. I'd give him maybe a 40% chance. But it's far from a zero chance.
WRs with the size and skill set of Baker are readily available in every draft. If you get one that's a head case and whose play doesn't justify putting up with shenanigans, you just move on and draft his replacement the next year.