The Jets players were showing up wearing Mike White t-shirts last year after he replaced Wilson, which must have been tough to take for Zach. That's open disrespect.
To bring that guy back is mind boggling, except that the plan was just for him to backup his hero Rodgers and "show tons of promise" in practice and preseason, so it would never matter.
Pretty much, if you're a top team and your starting QB goes down early your season is over anyways.