Danielson has to change his style. He has a half dozen finishers that are all over with the ROH crowd, but in the E, you have to dumb it down for the masses and have *one* signature move. But this is a guy who got the small package over as a credible finish, so he's good enough to adjust and come up with a 4 or 5 move repetitive rotation that Vince likes his guys (especially babyfaces) to have, and find one finisher to get over (Cattle Mutilation is unique enough work, but who knows).
Sometimes, it all comes down to having the right people behind you:
-William Regal is a big supporter, and that's good, because Regal and HHH are tight.
-Jim Ross being a big supporter is probably a negative.
-Being "trained" by HBK means nothing, because it did nothing for the careers of Brian Kendrick or Lance Cade (besides, HBK probably couldnt pick Danielson out of a lineup).
-I don't know if CM Punk is tight with Danielson, but it would probably be a negative anyway, because Punk is still an outcast of sorts, and his status as a headliner did nothing for his best friend (Colt Cabana) in terms of push or job security.
He's relatively weak on promos, but was able to get by in ROH because he was so over. But I think he's good enough to pull off the cheesy scripted garbage they give everyone. Jury is out.
But the biggest thing that will work against him is his rep. CM Punk came in with a big rep, and despite being told he didn't know how to work, sent to developmental for a year, and banished to ECW for another year after that, he was able to overcome it. But he's still not very well liked.
The difference between Punk & Danielson, is unfairly or not, Punk comes off cocky and aloof (because he probably is), while nobody ever has a bad thing to say about AmDrag, who by all accounts is humble, contrite, and respectful of everyone he works with. Plus, Punk commited the cardinal sin of fucking Divas before he was considered a star, a major breach of locker room etiquette (you cant make this stuff up). AmDrag dosen't strike me as the kind of guy who will be hitting on Kelly Kelly his first day in.
I think he needs to come in with a gimmick that he's a no frills, no nonsense, great wrestler. Even use the "Best In The World" tag as his catch phrase. That way, he can come out with his lack of tan, lack of muscle tone, short stature, and bad haircut, and instead of looking minor league, he'll come off as different and unique. Let the heels pick on his body, make fun of his unintimidating look, but then have him work them in the ring and "ouwit" them at every turn.
Will that get over? Can a guy who's "just a wrestler" work in that envrionment? I don't know, but he's probably the only guy who can pull it off.