I guess we'll see in a few years, right? I hope he kills it at wideout; I just wouldn't expect immediate results. WR is probably the least "plug and play" position in the NFL besides QB.
As far as Samuel not giving 100% on his "less important non-40 yard dash drills"... come on now. They are every bit as important as the 40, if not more so. He's just more of a straight-line dude... most guys are one or the other it seems. How many times did Samuel really juke someone out of their shoes the past 3 years? He did, however, absolutely blow by people about 20 times this season for guaranteed long ball TDs. Unfortunately, Barrett only hit on about 30% of those when he was open.
I was merely pointing out that it's not really surprising that Samuel put up a blazingly fast 40 but only average agility times when you actually watched his game on the field. He's a burner, and I think instead of being the traditional slot guy that wins on quickness and agility and savvy route running he's going to have to be more of a deep threat, one trick pony kind of guy, and could be very effective in that role.