It's called blame shifting. To make BB look perfect, they need to blame his GM mistakes on Quarterbacks who are no longer with the team.
Fact is the Patriots have drafted 2 good receivers in 20 years - Deion Branch and Julian Edelman. Eventually the blame needs to go back to the decision makers. If Tyquan Thornton makes it, it will almost be against near miraculous odds considering BB's track record in the draft for receivers.
So, David Givens wasn't a good receiver?
Yes, Belichick hasn't been 100% on drafting WRs. But lets stop pretending like he's spent oodles and oodles of high draft capital on them.
Bethel Johnson (2), Chad Jackson (2), Taylor Price (3), Brandon Tate (3), Aaron Dobson (2), N'Keal Harry (1).
So, in 22 years, he used a total of 7 "High end" picks on WRs. one - 1st, four -2nds, two -3rds. No. 1 in 7 isn't good. Pats have spent 10 picks on WR in rounds 4-7. That doesn't include Matthew Slater. They hit on Givens and Edelman. One could even say they hit on Berrios and that the Pats chose to keep the wrong return guy on the main roster. One could also argue that Mitchell was a hit considering the Pats knew that anything beyond one season was going to be iffy considering his knees. 3 of 17 stinks. 5 of 17 is ok, but not great. (17.6%-29.4%).
I bet if you look around the league, no one spends as few "Top end" picks on WR as the Patriots.
The difference in Thornton is that he doesn't just run go routes. Looking at his tape, he ran Gos, Slants, Corners, Posts, and Digs. I saw nothing that would lead me to believe that he couldn't run Outs, Curls, Flats and comebacks. The only issue with those routes is that they don't play to his strengths, which is to keep running. And that is a big difference between him and Bethel Johnson.
Note that I'm counting Tre Nixon as a fail even though he's only going into his 2nd year.
Ignoring the change from Cowher to Tomlinson, here is what the Steelers used in that same time:
Burress (1), Randel-El (2)*, Homes (1), Reid (3), Sweed (2), Wallace (3), Sanders (3), Wheaton (3), Coates (3), Schuster (2), Washington (2), Johnson (3), Claypool (2) - 7 of 13. But they used two - 1sts, four - 2nds, six - thirds. Yes, they did better using twice the number of picks. They did excellent. I didn't count Randel-El because he played so much QB for them.
Steelers had another 10 picks in later rounds. They hit on Antonio Brown.
8 of 23 anyone? (34.8%)
This idea that Tyquan making it would "be against near miraculous odd" is about as accurate as a $3 bill. He's got as much chance as any 2nd round WR.