As I've explained for the past two seasons, Jennings is not a pro level QB. Can't read coverage, mediocre arm and poor accuracy.
Other than a miraculous 35yd prayer on the opening drive, Jennings did absolutely nothing against Toronto. Buono finally had no choice but to bench him in favour of the guy with a broken wing.
It's just a matter of time until Jennings becomes 1st string clipboard holder.