I don't believe he enrolled early. After looking a little more, I did find a 10.77 100m for him. So he is actually the fastest of the bunch (if all these times are to be believed).
Trying to respond to other points in the thread, I agree that the staff would like to keep Moe at RB for the 2018 season, as there really is no speed back with experience except him. But between Howard and Pierce, I think they have guys who can run as fast as Moe but are a lot bigger, more capable of breaking tackles and more physically capable of pass blocking in the event of a blitz. That is something that is really needed in this offense; your 3rd down RB needs to be able to pick up a blitzing LB or safety and hold him off from getting to the QB. I like Moe a lot but he is just too small to do this. When he was put in this situation last season, things didn't go well and I don't think he will ever be even adequate here.
The situation at the two inside WR positions is pretty dire. Nykeim Johnson was not ready to play last season and got destroyed/abused most times the ball was supposed to go his way. I think he makes a big jump up and emerges as a reliable WR but even that isn't a given. Then you have Riley, who is tough and a great kid but he just isn't big enough to get a lot of touches and he really isn't that fast either, which could help offset the size limitations. And there is the blocking thing...all these WRs need to block in this scheme. Sean is not going to win many battles blocking against players far bigger than he is.
So who else is going to get touches in the slot? True freshmen? Bottom line, I think the other options at RB are better than the other options at inside WR. Moe isn't going to be a great blocker either but he is better suited to the job than Riley and I think blocking from the slot is a little easier than picking up blitzes in the pocket. Moe is a play maker, he has proven that. Get him the ball in space and he will deliver. The best way to do that is to put him in the slot. As a side note, I love Harris and Lutz and think they will be great players. But both are from the Northeast, haven't played a ton of football and both played another position most of the time in HS (Harris at QB and Lutz at RB). They are unlikely going to as ready to play right away as someone like Queeley.
Moe might well end up at RB. It is going to be a tough decision.