Just for comparison, we took 11 WRs into camp last year. I can imagine that we we'll be focusing heavily on their KR/PR skills this year. This seems to be the first body on our roster.
In essence, with the guys we have on the roster right now, it's going to be 5 guys fighting for 1 spot, most likely winning or losing it on KR/PR abilities.
Of course, we could just go without a 5th WR at all, with Finley on the roster. If we do find a CB or RB who can return kicks.