You don't need the REAL classes. On the 2nd season of my franchise in Madden 11 there was a WR there named "Carlos Odom" who was 6'11 and ran a 4.26 40. He was projected 4th round. I took him in the 2nd round. Literally unstoppable. 6'11 and a 4.26 40 at wide out?
The next draft I got a QB named Wessling or something like that who ran a 4.2 something 40 and was a 86 overall as a rookie.
Madden has some great rookie prospects! It's not uncommon to click scouting and see SEVERAL Wr's in the 6'4-6'5 range that run 4.2-4.3', with the occasional giant here or there.
I believe the only way you can get the draft classes is by having NCAA 2011.
Maybe you can borrow the game from someone or rent it?
Once you have it ... You can download the real names through the Locker Room in the game. Then, start up a season and sim 4 seasons. Save the draft class from each season.
Then, in Madden you can load the draft classes in at the start of the season.
I haven't done it with the current systems, but when I had PS2, there was a way you could import it from online. It involved Game Shark I think. It came with two disks and I wire to plug your computer to your system. Cost like 30 bucks but I used it every year.
I used to spend HOURS editing draft classes in NCAA so that when I imported them into Madden their stats would be more "realistic".
I haven't bought either game in years cuz I got tired of the half-arsed effort by EA to fix the dozens of "Minor" issues in the game that would make it 100X better.
Disappointing, yet not surprising, to read that they still haven't fixed this particular issue.
Glad I haven't wasted my money on this trash in a few years though.