re: why I am concerned about Aggie football futures.

You ain't gotta leave. For future reference, the correct response in a thread like this is always

frick LSU

Losing JFF and Evans is huge but look at LSU and bama starting with new QB's. I would still put them offensively in the top 3-4. They will have to make big improvements on D but they will get better. If nothing else the young talent will improve some. As far as Texas, the ags being in the SEC is huge in Texas. People haven't bought into the Texas program or the old big 12. It is an afterthought until they start winning consistently. aTm will take a step back next year but still win 8 games and win a couple they shouldn't and lose a couple they shouldn't like the rest of the middle pack of the SEC. LSU included. The SEC will swing to a defense heavy league again next year with the departure of senior QB's. This benefits atm because it will keep them in every game with their offense.

Your losses on O Line will be the biggest factor in your decline, if it happens. Sumlin is a great coach, so I expect any decline to be small.