I agree with your last statement, but I also think it is questionable as to whether he would succeed at a high level even if he had consistent solid coaching. I would say 50-50 on that.
I love Towles but he wouldn't be successful with consistent coaching because his accuracy is terrible. If a coach could find a way to fix that he might have moderate success.
Either way I hope for the best for PT.
If you need a good OL, good WRs and good RBs to be a good QB, then you probably aren't a good QB.
You guys could all be correct. We will never know.
Shame though, home state kid, loved the program, great physical tools, etc...