Sometimes a QB just needs the right situation, place and timing to be a NFL QB.
Just take this guy for example:
https://www.youtube.com/watch?v=8mscfAZQ1D0
I would take Easton Stick over him. Are both NFL Starters? No, but lets not forget Easton is just a Junior. He's still got time to prove himself, while Trevor will be a lifelong back-up QB all over in the league, which isn't bad considering he (Trevor) was surprised he ever got drafted in the first place (
https://www.si.com/mmqb/2016/10/12/m...ning-successor).