As of now, we have a horrible set of wide receivers. That Belichick has won with less is irrelevant. This is a passing league, with receivers much more important than ten years ago.
AMENDOLA has replaced Welker
JONES has replaced Branch
TBD has replaced Lloyd
TBD has replaced Edelman
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We can't play with 2 wide receivers. We used to carry five WR's not counting STers like Slater. That number usually allows for a rookie who does not necessarily contribute much in their first year.
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So, we are short 2 wide receivers. Let's understand that Belichick knows this. Belichick thinks that he can find WR's as good as Lloyd and Edelman out there. Perhaps the players will come this week, perhaps next month, more likely every month through August. BUT, we will have plenty of receivers in camp, at least one is likely to be as good as Lloyd.
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While I was looking for upgrades, I would re-sign Lloyd and/or Edelman. The cost will not be large.