Pack on a little muscle, I can see Andre Johnson and that's not exaggerating.
He's 6'4, 205, 4.5 40, good hands, good route running, he won't be a stud from day 1 but he works hard, comes from a bit of a difficult situation (I know a bit about his back story from him playing at ASU so I get to hear a bit more about him than some of the other guys).
Look at it this way, Evans and Watkins are ready to make impacts now and both have pretty high ceilings and fairly high floors. Strong has an even higher ceiling and is already at the lowest level of production I can see him at and he's one of the top receivers in the nation.
And before anyone says bias, I'm not even an ASU fan, I freaking hate ASU.
EDIT:
@Illusions
I'll be honest, I straight up forgot about Lester but as you said, both those guys are are one year deals (at least as I recall as well) and both have been next to nothing special up until this year and even this year, they're only average my friend but they're playing well enough to warrant a bigger pay day each. Instead of spending the money there, draft some young guys with loads of talent and spend the money elsewhere (like maybe on Andre Johnson

)