The problem is that this team has holes that directly impact Lock's growth. Do you want to gamble and hope that the WR's we draft and have now can develop into the guys we need? Or, do you want to grab one now that meets the following needs: fills WR two hole, gets Lock another WR threat so teams can't clamp down on Sutton, let's Sutton grow into his role, and frees up a position that we probably have to develop heavily.
Wolfe's availability is an issue. And his play has been declining until a contract year. Sorry, if we can keep him on a nice deal that's fine, but his worth and importance is overstated in general. Not necessarily by you.