Well, nothing is realistically better when you dumpster diving

. I think Fitzpatrick is a good option this week (better than what you have at least in Bortles, possible in Tannehill too). The Texans often go run heavy but the Colts should take an early lead at home, forcing the Texans to throw it more than they'd probably like to.
Orten is tough to trust throwing in cold weather but even then he may well outperform Tannehill this weekend.
I'd go with Fitzpatrick and then toss a coin between Orten and Tannehill ... maybe a slight edge to Orten for playing at home and the Pack would be on a short week and tend to drop off in away games (both on O and D).
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If he has the misfortune to go, Giants pass-rush will have RG3 in a cast before half-time, imo.