I gave it a B. all the players have upside and like someone else mentioned, it was a classic Andy Reid/Veach draft. Draft fast, athletic guys and coach them up.
CEH, Gay and Niang are going to contribute right away so this is probably a B+ draft. If Keys and Sneed play and play well, it's another A draft like last year's turned into.
I don't know much about Danna other than he was a situational pass rusher at Michigan. I'm sure he'll be that and on ST for the Chiefs this year.