After overanalyzing brief clips and reading far too much into player/coach media appearances, I'm optimistic about Tyree at Slot. I also think Merriweather has always been the unicorn. He's the best shot we have at a 1st rd WR since Fuller and that will start to show itself this year.
A foursome of Thomas, Merriweather, Tyree, and Colzie can be very good. Mix in the heavy personnel like Evans and Staes (stud). Plus, the RB's. And I think you are getting to a place with some serious firepower on offense.
If I also overanalyzed 30 second clips of Rico Flores every Spring for the last 10 years, I would never think he's a freshman. Therefore, If Rico is your 7th or 8th option in the passing game. That feels like a good place to be in the Spring. By Fall camp one of these Freshman will not be a freshman anymore.
I should add, like all things, a lot of this is predicated on guys getting better. They should get better on their own this offseason and they should get better during Fall Camp. The WR room has bottomed and the 52 week low was missed if you're trying to buy now.