We have no idea what state this team will be in come the start of the season.
There's no primary receiver, just a bunch of potentials and question marks.
If there's little to no offseason activity, it's going to take a few games of actual play for the new OL to gel. Then depending on how poorly they play before that, it may take time for Sam to have any trust in them.
I'll be pleasantly surprised if they win half their games. This isn't a competing year, it's "keep Sam alive and let him grow" year. Believing in more than that is setting yourself up for disappointment.