CORNERS
Yes, I did indeed worry about cornerbacks and wanted us to re-sign last year's corners or upgrade them as our #1 priority (or perhaps #2 if Welker was #1). We re-signed Talib, Arrington and Cole. I still thin, as many do (including Reiss), that we still need another corner. But, I don't know the health of Dowling. In any case, we are at better than last year without the additional help that may or may not come. So, yes I moved on when Belichick signed four defensive backs, including an addition who can double as a coverage linebacker.
WIDE RECEIVERS
What I know is that Belichick and Welker couldn't strike a deal. I do NOT know that Belichick thought that Amendola would be as good fro the patriots this year as Welker was for it last year, or would be this year. I certainly don't consider Amendola a #1 receiver. I'm sure he can work out fine within the context of a wide receiver group.
Folks are simply assuming that Belichick has given up on getting the kind of production from the wide receiver position that we got last year, and that we will rely on out tight ends. Of course, we may be reduced to this if we have indeed significantly weakened our wode receivers from last year.
It isn't "out of the realm of possibility" that some JAG signing will have the production of Lloyd (over 900 yards as I recall).
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So, the PLAN is to hope Amendola produces as much as Welker and some unnamed player produces as much as Lloyd?
And finding a #3 receiver isn't even worth discussing. After all, the fact that we have failed at this task repeatedly in the past should be considered irrelevant.
In your scenario, if Amendola is injured for a game or two, we might as well line Hernandez a wide receiver.
CONCLUSION
We're not MINN! We need wide receivers. To expect Brady to win a Super Bowl with JAG's is what it is. I don't have that expectation. If we don't move before the draft, we will draft 2 WR's and they will likely have to play. We have been reduced to counting on Amendola and a couple of draftees. This is AS OF THIS DAY. Personally, I will feel very different if we re-sign Edelman (or less likely, Lloyd) and are able to secure Sanders. It is NOT that Lloyd is easily replaceable. However, I do understand that occasionally a team simply doesn't want a player around. And no, I am not sold on Sanders. He may simply be the best option available, if he is.
A low bar compared to last year? It really isn't if you accept the fact that one of the greatest coaches of all-time saw fit to swap out Amendola for Welker. That is why I personally leave the "loss of Welker" out of the equation. There's nothing we can do about it, as the decision has already been made, and there is actually a reasonable argument that it had been made awhile ago. I think we simply have to trust in Belichick's plan, but it is quite reasonable to see his point in wanting to pay the younger player with a higher upside for the future.
The leaves us needing to replace the following depth chart at WR from 2012:
--Llyod
--Edelman
--Branch
Considering the fact that Reche Caldwell caught 61 passes from Brady, I don't think it's out of the realm of possibility to think that someone else can replace Llyod's production, and it would appear that Belichick feels that way too, especially when you factor in the assumed health of the 2 TE's which would lead to less production from Llyod in 2013, had he stayed.
That leaves needing a replacement for Edelman and Branch...if we cannot make that happen then we don't belong in the discussion of upper tiered teams in the first place.
You've gone from worrying about the CB depth non-stop prior to the free agency period to now worrying about the WR depth. Unless you assume that Belichick has lost his mind, I would think that our WR depth will be improved upon from last season, which may also lead to seeing some youth, size, and all around better skillsets added.