Unless you are actively involved in summer workouts you have no idea what you are talking about. The whole conversation of Taysom being better is conditional on Taysom being 100% and that Tanner has not improved over the offseason.
Taysom is talented and we have seen his potential. He is high risk high reward. He has not proven anything as a passer, but is a freak athlete and a heck of a dude.
Tanner is talented, but has only started to tap into his potential. He is low risk and equally high reward. He has a lot to prove, but has all the tools and talent to be one of the best ever at BYU.
Bottom line. Anything Tanner > Taysom posts or vise versa are opinions based on very limited information. Nobody knows who is running the new offense better, if Taysom is 100%, or how much Tanner has improved through the offseason.