I was told that nobody from the Class of 2013 could be backdated to 2012 (although I'm not sure the info I got was 100% correct). Can't trust anybody on the Hill.
Here's your 23:
1 Luke Arciniega (Jan 2013 enrollee)
2 Josh Kirkland (Jan 2013 enrollee)
3 John Miller (Jan 2013 enrollee)
4 Jonathan Burton (Jan 2013 enrollee)
5 Tyler Provo
6 Austin Wilson
7 Marqez Hodge
8 Isaiah Johnson
9 Trevon Trejo
10 Darius Kelly
11 Corey Winfield
12 Alex Hayes
13 Chauncey Scissum
14 Mitch Kimble
15 PJ Batten
16 Brisly Estime
17 Kendall Moore
18 Alryk Perry
19 Tyler Marona
20 Drew Allen
21 Michael Lasker
22 Sean Avant
23 Jamar McGloster
Not sure why you think we only brought in 19 players last year.
Even if Arciniega and Miller could count towards 2012, that still leaves 21 players on the 2013 books, with the chance for four Jan 2014 enrollees to be backdated to 2013.
However right now we only have 3 early enrollee candidates (Williams, Cooper, Long). So right now the only question is if Long counts towards 2014, or 2013.
And we still can only take 19 newbies right now before we bump up against the 85 limit, pending graduations, transfers, and NFL's.