Here is tha article from the Chiefs blog:  http://www.arrowheadpride.com/2009/11/8/1121322/former-chief-pollard-didnt-like

From the Chiefs blog writeup:

""With professional athletes, you’re dealing with grown men," he said obviously referring to Haley's loud and critical style. "You’re not dealing with boys," Pollard said. "You’re not in a locker room with sophomores in high school. You’re dealing with grown men with families. I have a wife. I have a son. And I have a daughter on the way."

Pollard implied, per the Journal-Gazette, that it was a personality conflict with Haley or GM Scott Pioli that led to his release.

"I’m not going to sit there and let you curse me out when you feel like cursing me out or talk to me any way you want to talk to me, and you just want me to sit and take it and say, ‘Yes, coach.’"

Back in training camp, Pollard had a shouting match with Clancy Pendergast that led to him being sent off the field.  That was the beginning of this "personality conflict" that Pollard suggests.

On Pollard's words, though, I'm not too surprised.  I would imagine that a lot of players would feel bitter towards Haley if they went through, what he called the most physical training camp in the NFL, and then it "didn't work out" (though I'm glad it worked out for Pollard eventually)."

Also article in newspaper:  http://www.journalgazette.net/article/20091108/SPORTS0605/311089894/1008/SPORTS