current players are all the same. with potential, the "freaks" have been eliminated. all the top talent is the same.
under the old system you could have pulled down a stud. then you could have RS'ed him. Then started him all four years and given him 30mpg.
Now, under potential, final ratings are predetermined. Its rounded off the upper echelon of recruits.
a great guard will be 70 SPD, 75 PER, 75 BH, 75 PAS
a great post player will be 60 ATH, 80 RB, 60 LP
or a variation of the sort. ie - maybe 10 less in speed, but 10 better in BH