We need WRs who can beat single coverage. We don't need an elite guy who can beat double coverage. Note that that elite guy probably takes an elite passer to go with him.
In 2014 we had Dez and Romo as that elite QB/WR duo. Certainly nice to have, but hard to come by. Also, very expensive.
I'm more interested in the strategy of two solid WRs who can beat single coverage, plus a decent QB who can get them the ball. Much cheaper, much easier to find, and it lets you put your resources on the oline, which is where we happen to have our money, and have the players to make that worthwhile.
Hurns looks like a great example of a less than elite WR who can beat single coverage. Ridley is probably still not going to be elite either, but he projects as a guy who can beat single coverage even more. Good route runner with enough speed paired with that to go deep. Two guys who can run routes and catch the ball, with one of them a deep threat.
I think Butler was actually a pretty good fit for us too. Decent enough skills to catch the short stuff, but the size, strength, and long speed to beat you deep. Another guy who can beat you if you only single him. Speed kills.
We need enough WR talent to hurt teams if they crowd the box and single our wide outs. If they don't crowd the box, we're going to beat them with Zeke and the oline.
I like that kind of offense as a long term strategy. Spend in the trenches, not the edges.