I will rank them and give them letter grades.
Dak- C
Zeke - A-
Pollard - B+
Amari - A-
Gallup - B+
Lamb - (Don't have enough info on him yet, so I won't be ranking him. Can't say anything until he actually plays in the pros).
Jarwin - B
Dak- Got a C because of his inconsistency. As you can see, I have all of his weapons at a B or above grade. He should be on the same level. However, he isn't. Yeah, I know his WRs dropped some passes last season, however, how many dirt balls did Dak throw last season? I can think of quite a few, especially on many important 3rd downs. Also, how do we know these drops aren't from inaccurate passes that the WR may have adapted to catch, but couldn't adapt enough to hold on due to the toughness of the catch...? Now, Dak had some good games (Vikings and the Lions last year), which helps raise his grade, however, he significantly dropped off at and after the Patriots game last year to the point where it worries me.
Zeke- A- because he has dropped off from his first 3 years, however, I feel like he needs to lean 2 ways. Just gain the weight and become a powerhouse RB (hard to tackle, can run over defenders) or he needs to lose the weight and be like he was his rookie year, where he would consistently jump and evade defenders. At his weight now, we can still do all of the above, but he can't do it as well. He can't evade as well, can't find holes as well, can't jump over players as well. However, he's also not big enough to knock down defenders sometimes. Yes, some of it may be due to the ineptness of the offensive line at times, however, most of the fault lies on Zeke. We will see....
Pollard: Pollard is great. He's the Kamara to Zeke's Ingram. He can also line up as a receiver. Very fast, and a very great addition to the team. Obviously not as great as Zeke, but he's up there. I feel like using a 2 RB set like the Saints did will lead to a higher grade for both Zeke and Pollard. Pollard had some amazing plays last year. Can't wait to see him line up again. I really don't have a downside for him, since we obviously don't get to see him as much as the other players.
Amari - a tricky one. He's sort of like the Dak of the WR's. Sometimes he can light it up, sometimes he can stink it up. Luckily, we had other good WR's, but I love Amari. His attitude for the most part is great, and when he goes off, he goes off. His chemistry with Dak is great, and I loved all his toe tap moments in the Vikings game last year. However... his attitude at times can also be...awful. He looks like he doesn't care and may lack that "dawg" mentality that is needed from some WR's. He also drops quite a lot of balls, but we knew this since Oakland. His route running skills are amazing though, no one can deny that. A very technical WR that can be used for many years, as he doesn't just rely on his raw athleticism as say, Dez did, which will wear out after a certain amount of years in the league. A really great duo with Gallup. I say they feed off of each other well, and could be a top duo again this coming year if they both remain healthy.
Gallup- A dark horse in my opinion. He's a 1000 yard receiver that is often overlooked by opponents and fans of other teams. Some games, he even got more yards than Amari! He's amazing as well and reminds me of Dez, but with a little more technicality. He goes for more jump balls and has a little more athleticism and dawg in him than Amari. Again, a great WR. I don't expect as much from him as I do Amari, since Amari is the one with the big payday, hence will I don't really have as much of a downside for him other than the fact that he can have some lackluster times, and drops balls often as well.
Jarwin - biggest dark horse. Even though his blocking skills need some assistance, he is the Giant killer, and always seems to be open. Is he going to be a top 3 or even 5 TE? Probably not. However, a lot of players on the team say he's one of the most athletic, and from my standpoint, one of the most underrated. It seems to me he will always get a lot of YAC. I feel like Witten took away a lot of reps that could've been his, however, we should see a lot more of him from this year. A lot of TE's take time to develop, so Jarwin is definitely on my radar. He's lower on the grading scale because, again, we didn't see him as much and his blocking skills could use some work, but the sky is the limit for Jarwin.