I have a defense issue, help!

[Lord Nikon]

I have Adrian Peterson starting and the only defense I have that isn't on a BYE week is the Patriots! I am guessing it would be a bad idea to start Peterson against my own defense?

The only defenses available to pick up right now is Indianapolis or Houston. My question is, do I keep Peterson in against the Patriots or do I pick up one of these two defenses off waiver for this week? Which defense should I pick up? :(