Also need a TE this soon please

I currently have Clay, but worried about knee and now new QB against a tough defense. Not much on waivers: CJ Fiedo vs ARI, Jermaine Greham vs HOU, Marcedes Lewis vs CLE, or Julius Thomas vs TB? Should I stay with Clay, or switch to any of those listed?

I think Clay is a high risk with that knee and is questionable-Maybe Lewis because he may be able to get some short passes in that weather-