Kyler has played 51 career games.
By passer rating his games this year at ranked #19 (Chiefs, all garbage time), #23 Carolina, #34 Philly, #39 Rams, #41 Raiders.
Ranked by YPA he's #33, #37, #41, #42, #43 this year.
Ranked by Comp % he's #13, #30, #36, #37, #38
Yet outside of the Kansas game every single game is in the bottom 3rd in pressure faced. The Philly game was the least pressured game of his career. Only 2.2% pressure rate. 2.2%!
So he's protected better than ever but completing less passes for less yards at the lowest TD rate of his career and his best game statistically of the year came vs the Chiefs in the most pressured game of his career.
Kyler is just playing badly. It's as simple as that. It seems Kyler isn't very good when given time to think and go through his reads.