Kirk is throwing picks from clean pockets. His fall off has nothing to do with his mobility
yeah hes at the point where its time to put him to rest
you don't always see the decline like that but when you do look at marino, troy aikman, peyton manning, donovan mcnabb
Final Year as a starter
Dan Marino age 38- 12 tds and 17 ints
Peyton manning age 39 - 9tds and 17 ints
Donovan mcnabb age 34 - 14 tds and 15 ints
troy aikman age 34 - 7tds and 14 ints
brett favre 41 - 11 tds and 19 picks
matt ryan 37 - 13tds and 14 picks
carson palmer 38 - 9 tds 7 ints
You start throwing a bunch of picks more than you did tds when you never really did before like that. You don't come back from that once you over 34 its done its over.