I like all the plays on the Parlay, the one that worries me is the Titans -4, that could easily be a 3 point game. Houston isn't as bad as they looked last week. I wouldn't be surprised if Houston won that game.
My problem with Parlays is just that, you need 5 games to come in to make a 400% profit, I just don't like those pot odds. Especially in the NFL. Just my personal belief system, I would rather play each of those individually and try to take 4/5 every week. Just my $0.02.