NFL Total Wins Question

[YoureToast]

Here's what I think: I think the Eagles may or may not win 12 games (the line is at 11.5 at Pinnacle) (I think it is sligtly more likely they will win less than 12 and the money line reflects this). But I also think that if they win less than 12, there is a very good chance that they will win SIGNIFICANTLY less than 12. Therefore, with the correct odds, I'd like to bet on the Eagles winning, say, less than 9 or less than 8. Anybody know of any creative ways that I can do this?

I'll explain my reason for why I think this later (you might be able to guess) but I don't want to distract from the main question.