Prior's mechanics critiqued by Chris O'Leary.
Interesting... I saw this one from HTH:link
This guy is saying that he altered his mechanics over the years and that he should be pitching more like he did prior to 04. In any case, Prior's current mechanics seems to be an issue. To me, he always looked so smooth and effortless up there that it seemed like mechanics wouldn't be the cause of the problem.
What I do think is a huge contributing factor is his sharp increase in workload:
03-211.1 (plus playoffs)
He was injured in 04 on that collusion with Marcus Giles and never fully recovered to his previous form (interestingly enough, neither did Giles). I do hope that he recovers well enough to be relevant again as he is one of my all time favorite pitchers.
the HBT article is pretty good.. i noticed it looked like prior has too much of a "stand up" delivery, keeping his back pretty much straight (effecting control), but then short arming his throw like an infielder, while also bringing his arm motion on a lower/rounder plane. It looks kinda like he is doing more of a circle motion than pitching motion because he is trying to catch his lower body with his upper body. You can also see on the right clip that he is trying to catch up to his body by kinda "turning" his shoulder to throw the ball.
I think he can figure it out, basically he has to get his timing back and start following through with a lean, but the uprightness/lack of lean can also be to his body not being fully in sync and his trying to catch up to it...