re: why no d linemen?

Pretty much any good division 1 school and most division 2 schools have top notch strength and conditioning programs. A top DL could go to just about any schools and just as easily find his way into the NFL. It's not really a factor for the top players but LSU has a good staff and good facilities that attracts its' share of top players. It's just that some players prefer other schools or want to get out of state.