I don't agree with the grades very much, so here is my take:
QB: C+, I don't see either of the top 2 prospects as franchise caliber players at QB, but I have begun to fall in love with the 2nd tier of the class. It looks like a deep and talented tier 2 with guys like Stanton, Beck, Kolb and Edwards. Even the 3rd tier has proven leaders and playmakers in Smith and Leak.
RB: C, Peterson is a great prospect and Lynch is only a step behind, but after that the class is rather mediocre. Many have spent lots of time discussing this, so I wont. Moving on...
WR: A, One of the best WR classes in recent memory IMO. Johnson is the best WR prospect in years and in any other draft the next 5-6 guys could all challenge for the top WR spot. I think there are several players with a great chance to become impact NFL players in the class. Johnson tops that list (duh) but all of: Ginn, Meachem, Bowe, Rice and Jarrett have tremendous playmaking ability. The 2nd tier is just as deap as the 1st and I'd also say this 2nd tier is about where last years 1st WRs (Holmes and Jackson) would fall. Davis, Smith, Gonzalez, Hill, Higgins and Allison are all fantastic prospects in their own right. I've said for about 3 years now that this 2007 draft would be the class of WRs and I still see nothing to back down from that.
TE: C, Olsen looks to me like a great playmaker at the NFL level but he leaves something to be desired on the physical side of his game. Unlike the past several years, there really isn't an elite TE in this class. Olsen tops the group and maybe close. Others that are only a step behind Olsen are Miller and Patrick. Then you get the extended Tackle, Chandler who IMO is unique vs the other prospects. The 3rd tier may offer some surprises, but I'm not seeing anything to get excited about.
Oline: B+, This is a very solid draft class for the Oline and teams looking to build from the ground up have to be excited. There is one sure fire franchise Tackle prospect as well as a stud G and C (Thomas, Grubbs and Kalil). Both Brown and Blalock are only a hair behind the elite guys at their position and then you have Sears, Ugoh and Staley who are also only a hair bellow them. I'd say there are probably 6 Olinemen with 1st round talent (or close to it) in this draft even though a few of those guys have and will slip.
Dline: B-, Now this is a tough one for me personally. I really love the DTs in this draft, but don't share the excitement of many other for the DEs. Several Dlinemen are grading out as blue chip guys: Okoye, Branch, Adams, Carriker and Anderson. Of this group, I like the 2 DTs and Carriker the most. I'm not as found of Adams as most as I see him as too one dimensional and Anderson should probably be in the next tier IMO. That 2nd tier is better than average and deep however. Johnson, Spencer, Moss, Woodley, Harrell and Tyler make up a sound 2nd tier and one that is better than most classes.
LB: C, Not a very good LB class IMO. I think Willis is a stud and stand out above this class in the same way that Calvin and Adrian do in the WR/RB classes. After that, I see a bunch of players that really need to be drafted into the right situation and an overall average 2nd tier. Timmons, Beason, Shaw, Bradley and Harris are the guys I like most after Willis.
CB: C, I have not been impressed with this CB class at all which makes me kind of sad. I think some nice 40 times have really raised the draft stock of athletes who's abilities have not shown to transfer as well onto the football field as their numbers would indicate. I wouldn't feel comfortable placing any of these prospects in consistent man to man though several could make strong impacts in a cover 2. None of the CBs in this years draft possess the kind of ball skills to be elite players IMO. I don't see any clear #1 player in this group and that is concerning. I suppose Hall and Revis grade out the best but I happen to like Houston and McCauley the most. I feel they have the best chance to transfer their skills into not only a cover 2 CB, but an aggressive man cover guy as well. Ross and Wade both enter the mix as well.
S: A-, I really love this Safety class as it seems full of playmakers with great ball skills. Landry is the obvious elite prospect here and reminds many of S. Taylor. He has the complete package of size, speed, range, ball skills, aggression and hitting/tackling. The only thing he may lack is some discipline in coverage. After Landry, the 2nd tier is outstanding as well. Nelson, Griffin and Mariweather are all flat football players who cover the field well and can probably even counter as CBs in man coverage a lot of times. Rouse and Weddle need not be overlooked as they would likely be 2nd tier in any other year. After these 6, there is a strong drop-off. I would say there are not many S classes with 6 football players this good however. So it is a top heavy class, but still a good one.
Overall class gets a C+ from me.