Yes, we should address the need for a #1 WR. NO ONE disagrees.
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1,2) That being said, what is our ceiling with McDermott and Love as our TWO starting OT's?
3) What is our ceiling with Zappe as our starting QB?
4) What is our ceiling with Brown and Sokol as our TE's?
The issue of a top WR is not whether we need one. Every team would benefit by adding a top WR (KC for example). The issue is priority and how much resources (draft and cap) to use on WR, given our needs at starting QB, backup quarterback, starting LT, starting RT, swing OT, and at TE (we have none signed).