I guess the part I find odd in the various reviews is that everyone generally agrees going into the draft that CB, WR, and OL were the Bears biggest needs. They started the draft with 6 picks, traded back in a deep draft and turned it into 11 picks. They spent 6 picks on offense - 4 on the offensive line. They rebuilt the secondary with the two 2nd rounders. It wasn't a bad draft in terms of building the overall team and technically they drafted at least one player at every need position.
Basically, the negative arguments boil down to neither of the 2nd round picks went to offense; therefore, no help was given to Fields and it ignores there were actually 6 picks for offense. Beyond that and specifically for NFL.com, their own rankings had Gordon and Brisker ranked higher by a tier than any WR available at those picks. And keep in mind that the NFL.com rankings are bit odd as a tenth of a point basically represents a tier (snapshot at the end of the post). No prospect this year was ranked higher than 6.81.
Gordon was 6.31 and Brisker was 6.38. They both fall into the "Will eventually be a plus starter" tier
The highest WR's available at the Bears picks were: Skyy Moore at 6.24, Pickens at 6.23, and Tolbert at 6.21 in the "Will eventually be average starter" tier. So, all in the tier below the secondary picks made by the Bears.
The other WR's went into even lower tiers.
Velus Jones was a 5.93, so he falls into the wide "Average backup or special-teamer" tier. Sounds about right - likely to start out as a back-up with really good return skills and likely a core special teamer. Maybe they could have grabbed a better WR prospect, maybe not. By that time, all the WRs left had big weaknesses, so it's a matter of which one do you think fits your offense and vision better to develop. Obviously, the Bears went with Velus, and no doubt his ability to immediately contribute to special teams is a factor.
The only offensive lineman in the same tier as Gordon and Brisker was Raimann. So, I guess that could be the gripe - that they didn't take him. However, they did take 4 offensive lineman late to develop and from a pure size perspective, Braxton Jones and Zach Thomas have NFL size and athletism to be developed. It will be interesting to see if they can get an eventual starter out of 1 of the 4 drafted lineman. Poles would be stupid lucky to get 2 out of the 4.
I'm still hoping they add at least one more veteran WR and OL.
NFL.com prospect rankings scale: