Tanner leaves by 24 no matter what, but I also think that he's the better option (for reasons we'll disagree on, I'm sure). I'd rather have Tanner play for 2 more years. Of course, if Taysom came back and gave us one full year, and Tanner stayed around for two more (until his senior year if no redshirt, junior if redshirt), then great. I just don't see a talent like him sticking around when he's already so old.
Again, I want Taysom back, but I don't 1). Think he would / should start, and 2). Think he's the better option.
Really, all I disagree with is the notion that Tanner should redshirt.