Look. I am not exactly for this move and that being said you have a horrible narrative going on that good teams need a true #1 WR. Even worse you assume to make it to a big game (not in your words but it how you put it) you need a true #1 WR to make it to the SB. This is a horrible narrative going around lately that to be good, you must have a true #1 and a true #2 WR.
Now lets talk about KC yes? they in the SB yes? Their #1 WR is ranked in the mid 30's and their #2 WR is ranked in the 50's. The point is, many teams do quite find with a 2A and a 2B WR.
So... The argument is, If you pick up a true #2 in the FA and Draft someone that has the potential to be a potential #1 with the extra draft capital to add even more to your offensive line? then one would assume that fixes many things all in one shot.
I myself do not assume anything, because our draft accuracy has not been the greatest. But in theory he is correct.
The Bills struggled cause JA did not have enough time to go through reads, needing better WR because the OL stunk. I would rather have a top 5 OL and a WR #2A and a WR #2B then waste time with a top 5 WR and not be able to get him the ball cause of lack pass blocking.
you have a #1A and a #1B WR for 2 reasons... Not a good QB or not a good OLINE. Fix the OLINE.