The biggest surprise would be our revamped O-line. I believe evryone will be surprised in the NFL as Ibar harry said.
This will be the most crucial element of our offense. The o-line will give Carr more time to run through his options and give the WRs more time to get open. DD and TH will have better rushing performances and everything will gel together very nicely.
I'm expecting the Texans offense to be the better ones in the NFL.