Oh my, it's the Oracle of Delphi... why do you predict the probable demise of these young men? Did it say so in your crystal ball?
Wasn't Jay Cutler pro at 23? He is in his mid-30's now... According to your logic, he should have been "next" several years ago!
nah, the difference is the size of these guys.
cutler turned pro weighing like 240.
trey brewer is 21 and weighs over 300.
cutler did it gradually, where as these guys go all out from the beginning.
of course, nothing is definite. i'm just listing the odds, esp. in recent years we've heard of young phenoms and then they're gone.