But there are plenty of reasons to be Optimistic imo.
Tanner's strengths will give guys like Trinnaman and Simon opportunities to shine and make plays.
Having a stronger, more deep O-Line will help. Tanner having a better understanding of the offense will help. Having pass options from rbs and TEs will give our WRs space to make plays.
I'm not expecting an Austin Collie or even a Cody Hoffman to emerge, but I do think this group has the potential to be "great". There will be standouts.
And like you said, there are a lot of unknowns -- but this is a physical and athletic group. Plenty of reasons to be optimistic rather than concerned imo.